diff --git a/.github/workflows/install-bindist.sh b/.github/workflows/install-bindist.sh
index 7f9ff4d..d36f476 100755
--- a/.github/workflows/install-bindist.sh
+++ b/.github/workflows/install-bindist.sh
@@ -111,7 +111,13 @@ case $TOOL in
 		cabal install --lib --package-env=. clock
         # https://github.com/haskell/ghcup-hs/issues/966
 		cabal install --lib --package-env=. hashable
-		[[ -e "$(ghcup whereis --directory ghc "$VERSION")/../share/man/man1/ghc.1" ]]
+		case "$(uname -s)" in
+			MSYS_*|MINGW*)
+				;;
+			*)
+		        [[ -e "$(ghcup whereis --directory ghc "$VERSION")/../share/man/man1/ghc.1" ]]
+			   ;;
+	    esac
 		;;
     cabal)
 		ghcup_fun install ghc --set "$(ghcup_fun list -t ghc -r -c available | tail -1 | awk '{ print $2 }')"