diff --git a/pages/common/patch.md b/pages/common/patch.md
index 912a50171..a5b79bbe2 100644
--- a/pages/common/patch.md
+++ b/pages/common/patch.md
@@ -1,6 +1,7 @@
 #patch
 
-> Patch a file or files with a diff file.
+> Patch a file (or files) with a diff file.
+> Note that diff files contain both the target filenames and list of changes.
 
 - apply a patch