diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 3c72a77c8..c451f9498 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -7064,6 +7064,13 @@ bool Tokenizer::simplifyCAlternativeTokens()
                 continue;
             if (Token::Match(tok->next(), "%assign%|%or%|%oror%|&&|*|/|%|^") && !Token::Match(tok->previous(), "%num%|%char% %name% *"))
                 continue;
+            if (executableScopeLevel == 0 && Token::Match(tok, "%name% (")) {
+                const Token *start = tok;
+                while (Token::Match(start, "%name%|*"))
+                    start = start->previous();
+                if (!start || Token::Match(start, "[;}]"))
+                    continue;
+            }
             tok->str(cOpIt->second);
             ret = true;
         } else if (Token::Match(tok, "not|compl")) {
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index 6e4489241..689eb653d 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -6143,6 +6143,7 @@ private:
     }
 
     void simplifyCAlternativeTokens() {
+        ASSERT_EQUALS("void or ( ) ;", tokenizeAndStringify("void or(void);", false, true, Settings::Native, "test.c"));
         ASSERT_EQUALS("void f ( ) { if ( a && b ) { ; } }", tokenizeAndStringify("void f() { if (a and b); }", false, true, Settings::Native, "test.c"));
         ASSERT_EQUALS("void f ( ) { if ( a && b ) { ; } }", tokenizeAndStringify("void f() { if (a and b); }", false, true, Settings::Native, "test.cpp"));
         ASSERT_EQUALS("void f ( ) { if ( a || b ) { ; } }", tokenizeAndStringify("void f() { if (a or b); }", false, true, Settings::Native, "test.c"));