diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c839030..dcaa97a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
   schedule: [cron: "40 1 * * *"]
 
 env:
-  RUSTFLAGS: '-Dwarnings'
+  RUSTFLAGS: -Dwarnings
 
 jobs:
   test: