diff --git a/README.md b/README.md
index bce6c91a4..1b45949be 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,7 @@ Arguments:
     ```sh
     $ svgo *.svg
     ```
+    Windows does not support glob expansion. The command above will not work on Windows. 
 
     ```sh
     $ svgo test.svg -o test.min.svg