diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 6b711b9cd..f9547e7ba 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -2211,7 +2211,7 @@ void Tokenizer::simplifyLabelsCaseDefault()
                 if (Token::Match(tok->next(),"[:{};]"))
                     break;
             }
-            if (tok->str() != "case" && tok->next()->str() == ":") {
+            if (tok->str() != "case" && tok->next() && tok->next()->str() == ":") {
                 tok = tok->next();
                 if (tok->next()->str() != ";")
                     tok->insertToken(";");