1 files changed, 1 insertions, 1 deletions

diff --git a/toxcore/group.h b/toxcore/group.h
index fc7629f3..7e7d7050 100644
--- a/toxcore/group.h
+++ b/toxcore/group.h
@@ -321,7 +321,7 @@ uint32_t count_chatlist(Group_Chats *g_c);
  * Otherwise, returns the number of elements copied.
  * If the array was too small, the contents
  * of out_list will be truncated to list_size. */
-uint32_t copy_chatlist(Group_Chats *g_c, int32_t *out_list, uint32_t list_size);
+uint32_t copy_chatlist(Group_Chats *g_c, uint32_t *out_list, uint32_t list_size);
 
 /* return the type of groupchat (GROUPCHAT_TYPE_) that groupnumber is.
  *