diff --git a/cash.sh b/cash.sh
index 4c0bd64..aef7e78 100644
--- a/cash.sh
+++ b/cash.sh
@@ -4,8 +4,7 @@ _try_cc() {
 	local infile
 	infile=$(mktemp --suffix .c)
 	cat > "$infile"
-	ccache hash_dir=false \
-		"${CC:-cc}" -o "$out" "$infile" "$@"
+	CCACHE_NOHASHDIR=1 ccache "${CC:-cc}" -o "$out" "$infile" "$@"
 	code=$?
 	rm "$infile" || :
 	return $?