diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index ec9aed402bf..c098571bb60 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -301,7 +301,7 @@ let
       NFS_V4_SECURITY_LABEL = yes;
 
       CIFS_XATTR        = yes;
-      CIFS_POSIX        = yes;
+      CIFS_POSIX        = option yes;
       CIFS_FSCACHE      = yes;
       CIFS_STATS        = whenOlder "4.19" yes;
       CIFS_WEAK_PW_HASH = yes;