diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 222f55da..b6d72b7a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -129,4 +129,4 @@ jobs:
           cargo miri test --manifest-path rand_isaac/Cargo.toml --all-features
           cargo miri test --manifest-path rand_xorshift/Cargo.toml --all-features
           cargo miri test --manifest-path rand_xoshiro/Cargo.toml --all-features
-          cargo miri test --manifest-path rand_jitter/Cargo.toml -- -Zmiri-disable-isolation
+          MIRIFLAGS="-Zmiri-disable-isolation" cargo miri test --manifest-path rand_jitter/Cargo.toml