diff --git a/net_io.c b/net_io.c
index 7b7876b..c65a43c 100644
--- a/net_io.c
+++ b/net_io.c
@@ -800,7 +800,9 @@ static void modesSendStratuxOutput(struct modesMessage *mm, struct aircraft *a)
     if (mm->correctedbits >= 2)
         return;
 
-    // NOTE: mlat messages are forwarded via Stratux output.
+    // Don't ever forward mlat messages via Stratux output.
+    if (mm->source == SOURCE_MLAT)
+        return;
 
     // Don't ever send unreliable messages via Stratux output
     if (!mm->reliable && !a->reliable)