diff --git a/src/tokenize.cpp b/src/tokenize.cpp
index 317d33b4f..31e70985e 100644
--- a/src/tokenize.cpp
+++ b/src/tokenize.cpp
@@ -2880,7 +2880,7 @@ bool Tokenizer::simplifyKnownVariables()
                         bailOutFromLoop = tok3->link();
                         continue;
                     }
-                    else if (tok3->str() == "}" && tok3->link()->previous()->str() == ")")
+                    else if (tok3->str() == "}" && tok3->link() && tok3->link()->previous()->str() == ")")
                     {
                         // Assignment was in the middle of possible loop, bail out.
                         break;