diff --git a/Makefile.am b/Makefile.am
index 59c6a33..6cb0af5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -32,7 +32,7 @@ install-data-hook:
 uninstall-hook:
 	rm -rf $(DESTDIR)$(htmldir)
 
-DX_CLEAN = doc/html/search/* doc/{html,latex}/* doc/html.tar doc/*.tag
+DX_CLEAN = doc/html/search/* doc/{html,latex}/* doc/html.tar doc/*.tag doc/doxygen_sqlite3.db
 
 endif