diff --git a/src/libs/utils/id.cpp b/src/libs/utils/id.cpp
index 3d894f38271..59bebb746cb 100644
--- a/src/libs/utils/id.cpp
+++ b/src/libs/utils/id.cpp
@@ -252,20 +252,24 @@ QStringList Id::toStringList(const QSet<Id> &ids)
   will be generated by appending \a suffix.
 */
 
-Id Id::withSuffix(int suffix) const
+Id Id::withSuffix(qsizetype suffix) const
 {
     const QByteArray ba = name() + QByteArray::number(suffix);
     return Id(theId(ba.data(), ba.size()));
 }
 
+#if QT_POINTER_SIZE != 4
+
 /*!
   \overload
 */
-Id Id::withSuffix(qsizetype suffix) const
+Id Id::withSuffix(int suffix) const
 {
-    return withSuffix(int(suffix));
+    return withSuffix(qsizetype(suffix));
 }
 
+#endif
+
 /*!
   \overload
 */
diff --git a/src/libs/utils/id.h b/src/libs/utils/id.h
index b40f8eecadb..0acc753bdb2 100644
--- a/src/libs/utils/id.h
+++ b/src/libs/utils/id.h
@@ -30,8 +30,10 @@ public:
 
     static Id generate();
 
-    Id withSuffix(int suffix) const;
     Id withSuffix(qsizetype suffix) const;
+#if QT_POINTER_SIZE != 4
+    Id withSuffix(int suffix) const;
+#endif
     Id withSuffix(const char suffix) const;
     Id withSuffix(const char *suffix) const;
     Id withSuffix(const QStringView suffix) const;