diff --git a/Documentation/patching-guidelines.md b/Documentation/patching-guidelines.md
index 698f4a5ac6..f9d7ba4f65 100644
--- a/Documentation/patching-guidelines.md
+++ b/Documentation/patching-guidelines.md
@@ -39,6 +39,9 @@ create one.
 > git format-patch --zero-commit --no-signature -1 -o "$PATCH_DIR/<repo>"
 > ```
 
+**Note:** Please make sure there are no other already existing patches
+which target same files as the newly added patch.
+
 ## Applying Patches
 
 To apply a patch, or multiple patches, use `git am` while inside the target