diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index b634e41cb..5ef3f9496 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -9076,6 +9076,8 @@ void Tokenizer::simplifyQtSignalsSlots()
 {
     if (isC())
         return;
+    if (std::none_of(mSettings->libraries.cbegin(), mSettings->libraries.cend(), [](const std::string& lib) { return lib == "qt";}))
+        return;
     for (Token *tok = list.front(); tok; tok = tok->next()) {
         // check for emit which can be outside of class
         if (Token::Match(tok, "emit|Q_EMIT %name% (") &&