diff --git a/defines.h b/defines.h
index d52ae4a..1b1d3eb 100644
--- a/defines.h
+++ b/defines.h
@@ -18,6 +18,9 @@
 
 */
 
+#ifndef DEFINES_H
+#define DEFINES_H
+
 ////////////////////////////////////////////////////////////////////////////////
 //
 // WIFI_ON: All prereqs for running with WIFI are met
@@ -55,3 +58,5 @@
 #if __has_include ( "myAutomation.h") && defined(BIG_RAM)
   #define RMFT_ACTIVE
 #endif
+
+#endif
\ No newline at end of file