diff --git a/juniper/src/http/playground.rs b/juniper/src/http/playground.rs
index 57965686..08e67418 100644
--- a/juniper/src/http/playground.rs
+++ b/juniper/src/http/playground.rs
@@ -12,9 +12,9 @@ pub fn playground_source(graphql_endpoint_url: &str) -> String {
GraphQL Playground
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