diff --git a/Slang/slang.html b/Slang/slang.html
index 07bb833..e564976 100755
--- a/Slang/slang.html
+++ b/Slang/slang.html
@@ -181,7 +181,7 @@ function toggleBootstrapCode(){
 	if(bootstrap.hasAttribute('shown')){
 		bootstrap.removeAttribute('shown')
 	} else {
-		bootstrap.setAttribute('shown')
+		bootstrap.setAttribute('shown', true)
 	}
 }