diff --git a/skeletons/NativeInteger.c b/skeletons/NativeInteger.c
index 8f13a59..3dce02f 100644
--- a/skeletons/NativeInteger.c
+++ b/skeletons/NativeInteger.c
@@ -73,7 +73,7 @@
 	/*
 	 * Make sure we have this length.
 	 */
-	buf_ptr += rval.consumed;
+	(char *)buf_ptr += rval.consumed;
 	size -= rval.consumed;
 	if(length > (ber_tlv_len_t)size) {
 		rval.code = RC_WMORE;