diff --git a/validate.sh b/validate.sh
index 237d878f73d..3c8b8b8b52a 100755
--- a/validate.sh
+++ b/validate.sh
@@ -329,7 +329,7 @@ CABALLISTBIN="${CABAL} list-bin --builddir=$BUILDDIR --project-file=$PROJECTFILE
 # of validate.sh
 # https://github.com/haskell/cabal/issues/9571
 # https://github.com/haskell/cabal/pull/10114
-RTSOPTS="$([ $ARCH = "x86_64-windows" ] && [ "$($HC --numeric-version)" != "8.10.7" ] && echo "+RTS --io-manager=native" || echo "")"
+RTSOPTS="$([ $ARCH = "x86_64-windows" ] && [ "$($HC --numeric-version)" != "9.0.2" ] && [ "$(echo -e "$(ghc --numeric-version)\n9.0.2" | sort -V | head -n1)" = "9.0.2" ] && echo "+RTS --io-manager=native" || echo "")"
 
 # header
 #######################################################################