diff --git a/src/sugar/activity/Makefile.am b/src/sugar/activity/Makefile.am
index 91f6ea8f..e2e6fdce 100644
--- a/src/sugar/activity/Makefile.am
+++ b/src/sugar/activity/Makefile.am
@@ -1,10 +1,11 @@
 sugardir = $(pythondir)/sugar/activity
-sugar_PYTHON =				\
-	__init__.py			\
-	activity.py			\
-	activityfactory.py		\
-	activityhandle.py		\
-	activityservice.py		\
-	bundlebuilder.py		\
-	main.py				\
-	namingalert.py
\ No newline at end of file
+sugar_PYTHON =              \
+	__init__.py             \
+	activity.py             \
+	activityfactory.py      \
+	activityhandle.py       \
+	activityservice.py      \
+	bundlebuilder.py        \
+	main.py                 \
+	namingalert.py          \
+	widgets.py