diff --git a/cli/src/playground.html b/cli/src/playground.html
index 45dd5db0..22c874df 100644
--- a/cli/src/playground.html
+++ b/cli/src/playground.html
@@ -166,6 +166,7 @@
.query-error {
text-decoration: underline red dashed;
+ -webkit-text-decoration: underline red dashed;
}