diff --git a/libuavcan/src/protocol/uc_global_time_sync_master.cpp b/libuavcan/src/protocol/uc_global_time_sync_master.cpp
index 39c83c2e5b..6604d7e722 100644
--- a/libuavcan/src/protocol/uc_global_time_sync_master.cpp
+++ b/libuavcan/src/protocol/uc_global_time_sync_master.cpp
@@ -35,7 +35,7 @@ void GlobalTimeSyncMaster::IfaceMaster::setTxTimestamp(UtcTime ts)
     }
     if (!prev_tx_utc_.isZero())
     {
-        assert(0);
+        prev_tx_utc_ = UtcTime(); // Reset again, because there's something broken in the driver and we don't trust it
         pub_.getNode().registerInternalFailure("GlobalTimeSyncMaster publication conflict");
         return;
     }