diff --git a/include/asterisk/vector.h b/include/asterisk/vector.h
index c74f0a89b5866c8a37a525c29801ae65ab28e9db..83732e7c8ea5d0babae9352c83d3a9b37f183937 100644
--- a/include/asterisk/vector.h
+++ b/include/asterisk/vector.h
@@ -172,9 +172,11 @@
 			typeof((vec)->elems) new_elems = ast_calloc(1,		\
 				new_max * sizeof(*new_elems));					\
 			if (new_elems) {									\
-				memcpy(new_elems, (vec)->elems,					\
-					(vec)->current * sizeof(*new_elems)); 		\
-				ast_free((vec)->elems);							\
+				if ((vec)->elems) {								\
+					memcpy(new_elems, (vec)->elems,				\
+						(vec)->current * sizeof(*new_elems)); 	\
+					ast_free((vec)->elems);						\
+				}												\
 				(vec)->elems = new_elems;						\
 				(vec)->max = new_max;							\
 			} else {											\