diff --git a/module/os/freebsd/zfs/zfs_file_os.c b/module/os/freebsd/zfs/zfs_file_os.c
index d7786d5136..d86eeceab7 100644
--- a/module/os/freebsd/zfs/zfs_file_os.c
+++ b/module/os/freebsd/zfs/zfs_file_os.c
@@ -296,7 +296,8 @@ zfs_file_unlink(const char *fnamep)
 	rc = kern_funlinkat(curthread, AT_FDCWD, fnamep, FD_NONE, seg, 0, 0);
 #else
 #ifdef AT_BENEATH
-	rc = kern_unlinkat(curthread, AT_FDCWD, fnamep, seg, 0, 0);
+	rc = kern_unlinkat(curthread, AT_FDCWD, __DECONST(char *, fnamep),
+	    seg, 0, 0);
 #else
 	rc = kern_unlinkat(curthread, AT_FDCWD, __DECONST(char *, fnamep),
 	    seg, 0);