diff --git a/src/main/rx/rx.c b/src/main/rx/rx.c
index 8e4bda1e..8ab48f53 100644
--- a/src/main/rx/rx.c
+++ b/src/main/rx/rx.c
@@ -289,7 +289,7 @@ void processRxChannels(void)
         uint16_t sample = rcReadRawFunc(&rxRuntimeConfig, rawChannel);
 
         if (feature(FEATURE_FAILSAFE) && shouldCheckPulse) {
-            failsafe->vTable->checkPulse(rawChannel, sample);
+            failsafe->vTable->checkPulse(chan, sample);
         }
 
         // validate the range