diff --git a/src/tokenize.cpp b/src/tokenize.cpp
index 630b1d740..5e5f94ee2 100644
--- a/src/tokenize.cpp
+++ b/src/tokenize.cpp
@@ -1054,7 +1054,7 @@ void Tokenizer::simplifyTokenList()
     }
 
     // Remove unwanted keywords
-    static const char* unwantedWords[] = { "unsigned", "unlikely", "likely" };
+    static const char * const unwantedWords[] = { "unsigned", "unlikely", "likely" };
     for (Token *tok = _tokens; tok; tok = tok->next())
     {
         for (unsigned ui = 0; ui < sizeof(unwantedWords) / sizeof(unwantedWords[0]) && tok->next(); ui++)