diff --git a/ArduCopter/config.h b/ArduCopter/config.h
index 7b70832869b..f4b3da842e7 100644
--- a/ArduCopter/config.h
+++ b/ArduCopter/config.h
@@ -274,6 +274,9 @@
 
  #undef CONFIG_SONAR
  #define CONFIG_SONAR DISABLED
+
+ #undef GPS2_ENABLE
+ #define GPS2_ENABLE 0
 #endif