diff --git a/legacy/elementary/.gitignore b/legacy/elementary/.gitignore
index 57224389fb..b1c3233935 100644
--- a/legacy/elementary/.gitignore
+++ b/legacy/elementary/.gitignore
@@ -1,3 +1,12 @@
+#
+# NOTE! Don't add files that are generated in specific
+# subdirectories here. Add them in the ".gitignore" file
+# in that subdirectory instead.
+#
+# NOTE! Please use 'git ls-files -i --exclude-standard'
+# command after changing this file, to see if there are
+# any tracked files which get ignored after the change.
+#
 *~
 *.lo
 *.o