diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 779dde147..4a03f4069 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -3992,19 +3992,6 @@ bool Tokenizer::simplifyTokenList()
 
     simplifySizeof();
 
-    // replace strlen(str)
-    simplifyKnownVariables();
-    for (Token *tok = _tokens; tok; tok = tok->next()) {
-        if (Token::Match(tok, "strlen ( %str% )")) {
-            std::ostringstream ostr;
-            ostr << Token::getStrLength(tok->tokAt(2));
-            tok->str(ostr.str());
-            tok->deleteNext();
-            tok->deleteNext();
-            tok->deleteNext();
-        }
-    }
-
     // change array to pointer..
     for (Token *tok = _tokens; tok; tok = tok->next()) {
         if (Token::Match(tok, "%type% %var% [ ] [,;=]")) {
@@ -4155,6 +4142,18 @@ bool Tokenizer::simplifyTokenList()
         modified |= simplifyCalculations();
     }
 
+    // replace strlen(str)
+    for (Token *tok = _tokens; tok; tok = tok->next()) {
+        if (Token::Match(tok, "strlen ( %str% )")) {
+            std::ostringstream ostr;
+            ostr << Token::getStrLength(tok->tokAt(2));
+            tok->str(ostr.str());
+            tok->deleteNext();
+            tok->deleteNext();
+            tok->deleteNext();
+        }
+    }
+
     // simplify redundant for
     removeRedundantFor();