diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 07aedac..7ab9326 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -76,7 +76,7 @@ jobs:
       - name: Run tests with miri
         env:
           MIRIFLAGS: -Zmiri-disable-isolation -Zmiri-strict-provenance
-        run: cargo miri test --all --verbose
+        run: cargo miri test --all --verbose --features fancy
 
   minimal_versions:
     name: Minimal versions check