diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d1e32be..cbe1500 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -20,6 +20,8 @@ jobs:
 
       - name: Build zkgroup library
         uses: actions-rs/cargo@v1
+        env:
+          RUSTFLAGS: "-C opt-level=0"
         with:
           use-cross: true
           command: build