diff --git a/src/twc-tox-callbacks.c b/src/twc-tox-callbacks.c
index a2213f9..7c02277 100644
--- a/src/twc-tox-callbacks.c
+++ b/src/twc-tox-callbacks.c
@@ -242,6 +242,7 @@ twc_friend_request_callback(Tox *tox,
 void
 twc_group_invite_callback(Tox *tox,
                           int32_t friend_number,
+                          uint8_t type,
                           const uint8_t *invite_data,
                           uint16_t length,
                           void *data)
diff --git a/src/twc-tox-callbacks.h b/src/twc-tox-callbacks.h
index 96f6aa8..3094e45 100644
--- a/src/twc-tox-callbacks.h
+++ b/src/twc-tox-callbacks.h
@@ -76,6 +76,7 @@ twc_friend_request_callback(Tox *tox,
 void
 twc_group_invite_callback(Tox *tox,
                           int32_t friend_number,
+                          uint8_t type,
                           const uint8_t *invite_data,
                           uint16_t length,
                           void *data);