diff --git a/src/plugins/qmldesigner/libs/designercore/designercoreutils/uniquename.cpp b/src/plugins/qmldesigner/libs/designercore/designercoreutils/uniquename.cpp
index dbef5d45953..bc96c0c3544 100644
--- a/src/plugins/qmldesigner/libs/designercore/designercoreutils/uniquename.cpp
+++ b/src/plugins/qmldesigner/libs/designercore/designercoreutils/uniquename.cpp
@@ -40,11 +40,11 @@ QString filterInvalidLettersAndCapitalizeAfterInvalidLetter(QStringView id)
     return result;
 }
 
-void trimNonAsciifromFront(QString &str)
+void trimNonAsciifromFront(QString &text)
 {
-    static const QRegularExpression lettersRegEx("[a-zA-Z]");
-    const int letterIndex = str.indexOf(lettersRegEx);
-    str = letterIndex == -1 ? QString() : str.sliced(letterIndex).trimmed();
+    auto found = std::ranges::find_if(text, isAsciiLetter);
+
+    text.erase(text.begin(), found);
 }
 
 void lowerFirstLetter(QString &id)