diff --git a/libraries/AP_Common/c++.cpp b/libraries/AP_Common/c++.cpp
index 34945db175..9101e2856a 100644
--- a/libraries/AP_Common/c++.cpp
+++ b/libraries/AP_Common/c++.cpp
@@ -9,7 +9,7 @@
 #include <AP_HAL.h>
 #include <stdlib.h>
 
-#if CONFIG_HAL_BOARD == HAL_BOARD_APM1 || CONFIG_HAL_BOARD == HAL_BOARD_APM2 || CONFIG_HAL_BOARD == HAL_BOARD_SMACCM || CONFIG_HAL_BOARD == HAL_BOARD_FLYMAPLE
+#if CONFIG_HAL_BOARD == HAL_BOARD_APM1 || CONFIG_HAL_BOARD == HAL_BOARD_APM2 || CONFIG_HAL_BOARD == HAL_BOARD_FLYMAPLE
 
 void * operator new(size_t size)
 {