diff --git a/src/disk.sh b/src/disk.sh
index 6fb084d1..7bf4a9dd 100644
--- a/src/disk.sh
+++ b/src/disk.sh
@@ -80,7 +80,7 @@ getSize() {
 isCow() {
   local FS=$1
 
-  if [[ "${FS,,}" == "xfs" || "${FS,,}" == "btrfs" || "${FS,,}" == "bcachefs" ]]; then
+  if [[ "${FS,,}" == "btrfs" ]]; then
     return 0
   fi
 
diff --git a/src/install.sh b/src/install.sh
index 041c1ff1..603c4010 100644
--- a/src/install.sh
+++ b/src/install.sh
@@ -265,7 +265,7 @@ if ! touch "$SYSTEM"; then
   error "Could not create file $SYSTEM for the system disk." && exit 98
 fi
 
-if [[ "${FS,,}" == "xfs" || "${FS,,}" == "btrfs" || "${FS,,}" == "bcachefs" ]]; then
+if [[ "${FS,,}" == "btrfs" ]]; then
   { chattr +C "$SYSTEM"; } || :
   FA=$(lsattr "$SYSTEM")
   if [[ "$FA" != *"C"* ]]; then