diff --git a/tests/run.sh b/tests/run.sh
index 0cc5ff5..c96e3e3 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -29,7 +29,7 @@ do
     fi
 
     # Ensure test output
-    if [ "$(base64 $out)" == "$(base64 ./out)" ]
+    if [ "$(base64 $out)" = "$(base64 ./out)" ]
     then
         echo -e "${GREEN}${BOLD}passed${NC}"
     else