diff --git a/run.sh b/run.sh
index 94a8460..e114129 100755
--- a/run.sh
+++ b/run.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 if [ "${1}" != "" ]; then
-    cd ${01}
+    cd ${1}
     go run *.go
     cd - > /dev/null
 fi