--- a/modules.d/99fs-lib/module-setup.sh
+++ b/modules.d/99fs-lib/module-setup.sh
@@ -41,7 +41,7 @@
 include_fs_helper_modules() {
     local dev=$1 fs=$2
     case "$fs" in
-        xfs|btrfs)
+        ext4|xfs|btrfs)
             instmods crc32c
             ;;
         f2fs)
