diff --git a/lib/checksizeof.cpp b/lib/checksizeof.cpp
index aa22c3872..8b3b29e5f 100644
--- a/lib/checksizeof.cpp
+++ b/lib/checksizeof.cpp
@@ -159,7 +159,8 @@ void CheckSizeof::checkSizeofForPointerSize()
                 tokSize = tokSize->nextArgument();
 
             if (tokFunc && tokSize) {
-                for (const Token* tok2 = tokSize; tok2 != tokFunc->linkAt(1); tok2 = tok2->next()) {
+                const Token * const paramsListEndTok = tokFunc->linkAt(1);
+                for (const Token* tok2 = tokSize; tok2 != paramsListEndTok; tok2 = tok2->next()) {
                     if (Token::simpleMatch(tok2, "/ sizeof")) {
                         // Allow division with sizeof(char)
                         if (Token::simpleMatch(tok2->next(), "sizeof (")) {