diff --git a/fs/rpmsgfs/rpmsgfs_client.c b/fs/rpmsgfs/rpmsgfs_client.c
index c4b9c82d485..6ee71894a84 100644
--- a/fs/rpmsgfs/rpmsgfs_client.c
+++ b/fs/rpmsgfs/rpmsgfs_client.c
@@ -393,6 +393,8 @@ static ssize_t rpmsgfs_ioctl_arglen(int cmd)
       case FIONWRITE:
       case FIONREAD:
         return sizeof(int);
+      case FIOC_FILEPATH:
+        return PATH_MAX;
       case FIOC_SETLK:
       case FIOC_GETLK:
       case FIOC_SETLKW: