diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtMultimedia/MediaPlayerSection.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtMultimedia/MediaPlayerSection.qml
index ef42ac29eaf..24ec8429ead 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtMultimedia/MediaPlayerSection.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtMultimedia/MediaPlayerSection.qml
@@ -49,7 +49,6 @@ Section {
                                + StudioTheme.Values.actionIndicatorWidth
                 width: implicitWidth
                 typeFilter: "QtQuick.AudioOutput"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: backendValues.audioOutput
             }
 
@@ -70,7 +69,6 @@ Section {
                                + StudioTheme.Values.actionIndicatorWidth
                 width: implicitWidth
                 typeFilter: "QtQuick.VideoOutput"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: backendValues.videoOutput
             }
 
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/AnimationTargetSection.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/AnimationTargetSection.qml
index c37f3e87af2..d441bb24802 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/AnimationTargetSection.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/AnimationTargetSection.qml
@@ -23,7 +23,6 @@ Section {
         SecondColumnLayout {
             ItemFilterComboBox {
                 typeFilter: "QtQuick.QtObject"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: backendValues.target
                 implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/ConnectionsSpecifics.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/ConnectionsSpecifics.qml
index 370de09eac6..5b32d6babd1 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/ConnectionsSpecifics.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/ConnectionsSpecifics.qml
@@ -52,7 +52,6 @@ Section {
         SecondColumnLayout {
             ItemFilterComboBox {
                 typeFilter: "QtQuick.Item"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: backendValues.target
                 implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LayerSection.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LayerSection.qml
index d0639629ac5..2106b86b72f 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LayerSection.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LayerSection.qml
@@ -100,7 +100,6 @@ Section {
                                + StudioTheme.Values.actionIndicatorWidth
                 width: implicitWidth
                 typeFilter: "QtQuick.Item"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: backendValues.layer_effect
             }
 
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LoaderSpecifics.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LoaderSpecifics.qml
index 1fff3f36ec4..d93dc0b3d40 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LoaderSpecifics.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/LoaderSpecifics.qml
@@ -55,7 +55,6 @@ Column {
             SecondColumnLayout {
                 ItemFilterComboBox {
                     typeFilter: "Component"
-                    validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                     backendValue: backendValues.sourceComponent
                     implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                    + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/MouseAreaSpecifics.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/MouseAreaSpecifics.qml
index 3dc30fbbf81..6fb5102f4c3 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/MouseAreaSpecifics.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/MouseAreaSpecifics.qml
@@ -181,7 +181,6 @@ Column {
             SecondColumnLayout {
                 ItemFilterComboBox {
                     typeFilter: "QtQuick.QtObject"
-                    validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                     backendValue: backendValues.drag_target
                     implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                    + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/RepeaterSpecifics.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/RepeaterSpecifics.qml
index 5895db1b1f9..ad94780a5c3 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/RepeaterSpecifics.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick/RepeaterSpecifics.qml
@@ -42,7 +42,6 @@ Column {
             SecondColumnLayout {
                 ItemFilterComboBox {
                     typeFilter: "Component"
-                    validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                     backendValue: backendValues.delegate
                     implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                    + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick3D/SpatialAudio/AudioEngineSection.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick3D/SpatialAudio/AudioEngineSection.qml
index 6add6fc880e..88b50c7872e 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick3D/SpatialAudio/AudioEngineSection.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/QtQuick3D/SpatialAudio/AudioEngineSection.qml
@@ -55,7 +55,6 @@ Section {
         SecondColumnLayout {
             ItemFilterComboBox {
                 typeFilter: "QtMultimedia.AudioDevice"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: backendValues.outputDevice
                 implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/DynamicPropertiesSection.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/DynamicPropertiesSection.qml
index 4e2ef4b044a..b3353f2fba2 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/DynamicPropertiesSection.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/DynamicPropertiesSection.qml
@@ -266,7 +266,6 @@ Section {
 
             ItemFilterComboBox {
                 typeFilter: "QtQuick3D.TextureInput"
-                validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
                 backendValue: layoutTextureInput.backendValue
                 implicitWidth: StudioTheme.Values.singleControlColumnWidth
                                + StudioTheme.Values.actionIndicatorWidth
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ItemFilterComboBox.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ItemFilterComboBox.qml
index ba0d8376f7a..61bcc7e6296 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ItemFilterComboBox.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/HelperWidgets/ItemFilterComboBox.qml
@@ -13,6 +13,8 @@ HelperWidgets.ComboBox {
     editable: true
     model: comboBox.addDefaultItem(itemFilterModel.itemModel)
 
+    validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ }
+
     HelperWidgets.ItemFilterModel {
         id: itemFilterModel
         modelNodeBackendProperty: modelNodeBackend