diff --git a/afsk/main.c b/afsk/main.c
index b5546611..f1b10ced 100644
--- a/afsk/main.c
+++ b/afsk/main.c
@@ -1253,7 +1253,7 @@ else {
 
 
 
-    if (payload == ON) {  // -55
+    if (payload == -55) {  // ON
       STEMBoardFailure = 0;
 
       char c;