diff --git a/libraries/AP_RPM/AP_RPM.cpp b/libraries/AP_RPM/AP_RPM.cpp
index e2bdd3d979..ef6ef19779 100644
--- a/libraries/AP_RPM/AP_RPM.cpp
+++ b/libraries/AP_RPM/AP_RPM.cpp
@@ -121,7 +121,7 @@ void AP_RPM::init(void)
             drivers[i] = new AP_RPM_Pin(*this, i, state[i]);
         }
 #endif
-#if EFI_ENABLED
+#if HAL_EFI_ENABLED
         if (type == RPM_TYPE_EFI) {
             drivers[i] = new AP_RPM_EFI(*this, i, state[i]);
         }
diff --git a/libraries/AP_RPM/RPM_EFI.cpp b/libraries/AP_RPM/RPM_EFI.cpp
index 74d338b2ee..c91fcf5560 100644
--- a/libraries/AP_RPM/RPM_EFI.cpp
+++ b/libraries/AP_RPM/RPM_EFI.cpp
@@ -17,7 +17,7 @@
 
 #include "RPM_EFI.h"
 
-#if EFI_ENABLED
+#if HAL_EFI_ENABLED
 extern const AP_HAL::HAL& hal;
 
 /* 
@@ -41,4 +41,4 @@ void AP_RPM_EFI::update(void)
     state.last_reading_ms = AP_HAL::millis();
 }
 
-#endif // EFI_ENABLED
+#endif // HAL_EFI_ENABLED