diff --git a/pages/graphql.vue b/pages/graphql.vue
index 4d07a1022..4a29fd82f 100644
--- a/pages/graphql.vue
+++ b/pages/graphql.vue
@@ -503,7 +503,7 @@ export default {
           headers[header.key] = header.value
         })
 
-        let variables = JSON.parse(this.variableString)
+        let variables = JSON.parse(this.variableString || "{}")
 
         const gqlQueryString = this.gqlQueryString