diff --git a/Tools/ardupilotwaf/ardupilotwaf.py b/Tools/ardupilotwaf/ardupilotwaf.py
index 9187de452a..34c25e631e 100644
--- a/Tools/ardupilotwaf/ardupilotwaf.py
+++ b/Tools/ardupilotwaf/ardupilotwaf.py
@@ -18,6 +18,7 @@ SOURCE_EXTS = [
 ]
 
 COMMON_VEHICLE_DEPENDENT_LIBRARIES = [
+    'AP_Airspeed',
     'AP_AccelCal',
     'AP_ADC',
     'AP_AHRS',