diff --git a/testcases/run-in-simulavr.sh b/testcases/run-in-simulavr.sh
index 081c800..b5bc94d 100755
--- a/testcases/run-in-simulavr.sh
+++ b/testcases/run-in-simulavr.sh
@@ -149,7 +149,7 @@ EOF
         else
           string = string "0";
         n *= 2;
-        if (n > (2 ^ e))
+        if (n >= (2 ^ e))
           n -= (2 ^ e);
       }
       return string;