diff --git a/conf/modules/digital_cam.xml b/conf/modules/digital_cam.xml
index 041305de78..dc5114ecad 100644
--- a/conf/modules/digital_cam.xml
+++ b/conf/modules/digital_cam.xml
@@ -54,7 +54,7 @@
 
   <periodic fun="gpio_cam_ctrl_periodic()" freq="4" autorun="TRUE"/>
 
-  <makefile >
+  <makefile target="ap|sim|nps|jsbsim">
     <define name="DIGITAL_CAM" />
     <file name="gpio_cam_ctrl.c"/>
     <file name="dc.c"/>
diff --git a/conf/modules/digital_cam_servo.xml b/conf/modules/digital_cam_servo.xml
index c677b02679..896c10f512 100644
--- a/conf/modules/digital_cam_servo.xml
+++ b/conf/modules/digital_cam_servo.xml
@@ -23,7 +23,7 @@
 
   <periodic fun="servo_cam_ctrl_periodic()" freq="4" autorun="TRUE"/>
 
-  <makefile >
+  <makefile target="ap|sim|nps|jsbsim">
     <define name="DIGITAL_CAM"/>
     <file name="servo_cam_ctrl.c"/>
     <file name="dc.c"/>