diff --git a/radio/src/gui/gui_common.cpp b/radio/src/gui/gui_common.cpp
index 4fe9e169c4..db46986bb7 100644
--- a/radio/src/gui/gui_common.cpp
+++ b/radio/src/gui/gui_common.cpp
@@ -591,6 +591,9 @@ bool isInternalModuleAvailable(int moduleType)
 
 bool isExternalModuleAvailable(int moduleType)
 {
+  if (moduleType == MODULE_TYPE_R9M_LITE_PRO_PXX1)
+    return false;
+
 #if !defined(HARDWARE_EXTERNAL_MODULE_SIZE_SML)
   if (isModuleTypeR9MLite(moduleType) || moduleType == MODULE_TYPE_XJT_LITE_PXX2)
     return false;
diff --git a/radio/src/pulses/modules_constants.h b/radio/src/pulses/modules_constants.h
index c97649a10c..948ee60df7 100644
--- a/radio/src/pulses/modules_constants.h
+++ b/radio/src/pulses/modules_constants.h
@@ -33,7 +33,7 @@ enum ModuleType {
   MODULE_TYPE_R9M_PXX2,
   MODULE_TYPE_R9M_LITE_PXX1,
   MODULE_TYPE_R9M_LITE_PXX2,
-  MODULE_TYPE_R9M_LITE_PRO_PXX1,
+  MODULE_TYPE_R9M_LITE_PRO_PXX1,    // Doesn't exist
   MODULE_TYPE_R9M_LITE_PRO_PXX2,
   MODULE_TYPE_SBUS,
   MODULE_TYPE_XJT_LITE_PXX2,