diff --git a/radio/src/tests/mixer.cpp b/radio/src/tests/mixer.cpp
index 109fb6d32..a087abf49 100644
--- a/radio/src/tests/mixer.cpp
+++ b/radio/src/tests/mixer.cpp
@@ -1019,7 +1019,7 @@ TEST(Trainer, UnpluggedTest)
   g_model.mixData[0].weight = 100;
   g_model.mixData[0].delayUp = DELAY_STEP*5;
   g_model.mixData[0].delayDown = DELAY_STEP*5;
-  ppmInValid = 0;
+  g_ppmInputValidityTimer = 0;
   g_ppmIns[0] = 1024;
   CHECK_DELAY(0, 5000);
 }