diff --git a/ArduPlane/make.inc b/ArduPlane/make.inc
index 3501ea5fb7..870ead6a6b 100644
--- a/ArduPlane/make.inc
+++ b/ArduPlane/make.inc
@@ -62,3 +62,4 @@ LIBRARIES += AP_Tuning
 LIBRARIES += AP_Stats
 LIBRARIES += AP_Landing
 LIBRARIES += AP_Beacon
+LIBRARIES += PID
diff --git a/ArduPlane/wscript b/ArduPlane/wscript
index 139eb32d7b..4cc2c7c2d0 100644
--- a/ArduPlane/wscript
+++ b/ArduPlane/wscript
@@ -33,6 +33,7 @@ def build(bld):
             'AP_Stats',
             'AP_Landing',
             'AP_Beacon',
+            'PID',
         ],
     )