diff --git a/pages/graphql.vue b/pages/graphql.vue
index 1355f3c2e..8c37bbcb7 100644
--- a/pages/graphql.vue
+++ b/pages/graphql.vue
@@ -525,7 +525,7 @@ export default {
           headers[header.key] = header.value
         })
 
-        let variables = JSON.parse(this.variableString)
+        let variables = JSON.parse(this.variableString || "{}")
 
         const gqlQueryString = this.gqlQueryString