diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e45f936..8c730c30 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -89,7 +89,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@nightly
       - uses: dtolnay/install@cargo-fuzz
-      - run: cargo fuzz build -O
+      - run: cargo fuzz check
 
   outdated:
     name: Outdated