diff --git a/pdk/Pdk.mk b/pdk/Pdk.mk
index 84cf3839f..42d103697 100644
--- a/pdk/Pdk.mk
+++ b/pdk/Pdk.mk
@@ -186,7 +186,7 @@ LOCAL_MODULE := online-pdk
 
 LOCAL_DROIDDOC_OPTIONS:= \
 		-toroot /online-pdk/ \
-		-hdf android.whichdoc online
+		-hdf android.whichdoc online \
 		-hdf android.whichmodule $(LOCAL_MODULE)
 
 LOCAL_DROIDDOC_CUSTOM_TEMPLATE_DIR := build/tools/droiddoc/templates-pdk