diff --git a/ci/miri.sh b/ci/miri.sh
index 68d6af61c6..9d845d833b 100644
--- a/ci/miri.sh
+++ b/ci/miri.sh
@@ -9,4 +9,4 @@ rustup toolchain install nightly --component miri
 rustup override set nightly
 cargo miri setup
 
-cargo miri test
+MIRIFLAGS='-Zmiri-retag-fields' cargo miri test