diff --git a/qbs/modules/qtc/qtc.qbs b/qbs/modules/qtc/qtc.qbs
index b86dbb3edbe..69d2f6c8762 100644
--- a/qbs/modules/qtc/qtc.qbs
+++ b/qbs/modules/qtc/qtc.qbs
@@ -63,7 +63,8 @@ Module {
         "QT_CREATOR",
         'IDE_LIBRARY_BASENAME="' + libDirName + '"',
         "QT_NO_CAST_TO_ASCII",
-        "QT_RESTRICTED_CAST_FROM_ASCII"
+        "QT_RESTRICTED_CAST_FROM_ASCII",
+        "QT_DISABLE_DEPRECATED_BEFORE=0x050600",
     ].concat(testsEnabled ? ["WITH_TESTS"] : [])
 
     Rule {
diff --git a/qtcreator.pri b/qtcreator.pri
index 8997b4a9961..1fcae0baf25 100644
--- a/qtcreator.pri
+++ b/qtcreator.pri
@@ -179,7 +179,11 @@ exists($$IDE_LIBRARY_PATH): LIBS *= -L$$IDE_LIBRARY_PATH  # library path from ou
     DEFINES += IDE_LIBRARY_BASENAME=\\\"$$IDE_LIBRARY_BASENAME\\\"
 }
 
-DEFINES += QT_CREATOR QT_NO_CAST_TO_ASCII QT_RESTRICTED_CAST_FROM_ASCII
+DEFINES += \
+    QT_CREATOR \
+    QT_NO_CAST_TO_ASCII \
+    QT_RESTRICTED_CAST_FROM_ASCII \
+    QT_DISABLE_DEPRECATED_BEFORE=0x050600
 !macx:DEFINES += QT_USE_FAST_OPERATOR_PLUS QT_USE_FAST_CONCATENATION
 
 unix {