diff --git a/scripts/importer.py b/scripts/importer.py
index 8cab2c0a8..1a22dff91 100755
--- a/scripts/importer.py
+++ b/scripts/importer.py
@@ -18,6 +18,12 @@
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
 
+"""Tool to import data from other browsers.
+
+Currently only importing bookmarks from Chromium is supported.
+"""
+
+
 import argparse