diff --git a/CommandStation-EX.ino b/CommandStation-EX.ino
index 689804b..861d77b 100644
--- a/CommandStation-EX.ino
+++ b/CommandStation-EX.ino
@@ -51,6 +51,9 @@
 #ifdef ETHERNET_WARNING
 #warning You have defined that you want Ethernet but your hardware has not enough memory to do that, so Ethernet DISABLED
 #endif   
+#ifdef EXRAIL_WARNING
+#warning You have myAutomation.h but your hardware has not enough memory to do that, so EX-RAIL DISABLED
+#endif
 
 void setup()
 {
diff --git a/defines.h b/defines.h
index 62a8f69..038b9de 100644
--- a/defines.h
+++ b/defines.h
@@ -79,7 +79,7 @@
   #if defined(BIG_RAM) || defined(DISABLE_EEPROM)
     #define RMFT_ACTIVE
   #else
-    #warning You have myAutomation.h but your hardware has not enough memory to do that, so EX-RAIL DISABLED
+    #define EXRAIL_WARNING
   #endif
 #endif