diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 787a1fb67..30bd5eac5 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -7171,7 +7171,7 @@ bool Tokenizer::simplifyCAlternativeTokens()
         if (cOpIt != cAlternativeTokens.end()) {
             if (!Token::Match(tok->previous(), "%name%|%num%|%char%|)|]|> %name% %name%|%num%|%char%|%op%|("))
                 continue;
-            if (Token::Match(tok->next(), "%assign%|%or%|%oror%|&&|*|/|%|^") && !Token::Match(tok->previous(), "%num%|%char% %name% *"))
+            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;
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index 1820d7d85..2779eda33 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -6223,6 +6223,8 @@ private:
         // #9324
         ASSERT_EQUALS("void f ( const char * str ) { while ( * str == '!' || * str == '[' ) { } }",
                       tokenizeAndStringify("void f(const char *str) { while (*str=='!' or *str=='['){} }"));
+        // #9920
+        ASSERT_EQUALS("result = ch != s . end ( ) && * ch == ':' ;", tokenizeAndStringify("result = ch != s.end() and *ch == ':';", false, true, Settings::Native, "test.c"));
     }
 
     void simplifyCalculations() {