diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index 3bc6913ad..b7248c5f8 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -869,10 +869,13 @@ static void checkRTCBattery()
 void checkFailsafe()
 {
   for (int i=0; i<NUM_MODULES; i++) {
+#if defined(MULTIMODULE)
     if (isModuleMultimodule(i)) {
       multiModuleStatus.requiresFailsafeCheck = true;
     }
-    else if (isModuleFailsafeAvailable(i)) {
+    else
+#endif
+    if (isModuleFailsafeAvailable(i)) {
       ModuleData & moduleData = g_model.moduleData[i];
       if (moduleData.failsafeMode == FAILSAFE_NOT_SET) {
         ALERT(STR_FAILSAFEWARN, STR_NO_FAILSAFE, AU_ERROR);