diff --git a/source/librpc/ndr/ndr.c b/source/librpc/ndr/ndr.c
index de87f0850a9..3a7ad7f29e3 100644
--- a/source/librpc/ndr/ndr.c
+++ b/source/librpc/ndr/ndr.c
@@ -320,7 +320,11 @@ void ndr_print_debug(ndr_print_fn_t fn, const char *name, void *ptr)
 	ndr->print = ndr_print_debug_helper;
 	ndr->depth = 1;
 	ndr->flags = 0;
+	ndr->switch_list = talloc(ndr, struct ndr_token_list);
+	if (!ndr->switch_list)
+		goto fail;
 	fn(ndr, name, ptr);
+fail:
 	talloc_free(ndr);
 }