diff --git a/source/libsmb/nterr.c b/source/libsmb/nterr.c
index a52a1bc6e18..fc6340342f8 100644
--- a/source/libsmb/nterr.c
+++ b/source/libsmb/nterr.c
@@ -658,11 +658,6 @@ const char *nt_errstr(NTSTATUS nt_code)
 	}
 #endif
 
-	if (NT_STATUS_IS_DOS(nt_code)) {
-		return smb_dos_err_name(NT_STATUS_DOS_CLASS(nt_code),
-					NT_STATUS_DOS_CODE(nt_code));
-	}
-
 	while (nt_errs[idx].nt_errstr != NULL) {
 		if (NT_STATUS_EQUAL(nt_errs[idx].nt_errcode, nt_code)) {
                         return nt_errs[idx].nt_errstr;