diff --git a/src/libs/cplusplus/MatchingText.cpp b/src/libs/cplusplus/MatchingText.cpp
index ad87b0c32a01ce005cd04de40c667a9272a6c729..7be70afa51acea585745086434c4a38a934956ca 100644
--- a/src/libs/cplusplus/MatchingText.cpp
+++ b/src/libs/cplusplus/MatchingText.cpp
@@ -55,6 +55,15 @@ static bool shouldOverrideChar(QChar ch)
     }
 }
 
+// disable gcc warning:
+//
+//   qstring.h:1175:39: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false
+//
+// caused by Q_ASSERT in QStringRef::at()
+#ifdef Q_CC_GNU
+#    pragma GCC diagnostic ignored "-Wstrict-overflow"
+#endif
+
 static bool isCompleteStringLiteral(const BackwardsScanner &tk, int index)
 {
     const QStringRef text = tk.textRef(index);