1 files changed, 2 insertions, 1 deletions

diff --git a/toxcore/Messenger.c b/toxcore/Messenger.c
index a4bc8100..c96a330f 100644
--- a/toxcore/Messenger.c
+++ b/toxcore/Messenger.c
@@ -1889,7 +1889,8 @@ int send_custom_lossless_packet(const Messenger *m, int32_t friendnumber, const
         return -2;
     }
 
-    if (data[0] < PACKET_ID_RANGE_LOSSLESS_CUSTOM_START || data[0] > PACKET_ID_RANGE_LOSSLESS_CUSTOM_END) {
+    if ((data[0] < PACKET_ID_RANGE_LOSSLESS_CUSTOM_START || data[0] > PACKET_ID_RANGE_LOSSLESS_CUSTOM_END)
+            && data[0] != PACKET_ID_MSI) {
         return -3;
     }