diff --git a/documentation/source-windows.md b/documentation/source-windows.md
index 3b8ff43..7c0075e 100644
--- a/documentation/source-windows.md
+++ b/documentation/source-windows.md
@@ -31,6 +31,12 @@ We assume that you have git available:
 git clone --recurse-submodules https://github.com/friction2d/friction
 ```
 
+Keep the source updated with:
+
+```
+git pull && git submodule update -i --recursive
+```
+
 ## Get the SDK
 
 The Friction SDK is required to build from source.