diff --git a/makerelease.sh b/makerelease.sh
index 7ddf7b6..4500ff7 100755
--- a/makerelease.sh
+++ b/makerelease.sh
@@ -3,6 +3,7 @@
 TAG=$1
 PREV_TAG=$2
 
+git submodule update --init
 git checkout refs/tags/$TAG
 git log --pretty=fuller --date=short refs/tags/$PREV_TAG..HEAD > ChangeLog