diff --git a/README.md b/README.md
index ab3b905732..be5b629c9b 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 current binaries are always available at http://rusefi.com/build_server/
 
 
+
 #Releases
 
 | Release date  | Revision  | Details |
@@ -53,3 +54,10 @@ General source code Q&A is at http://rusefi.com/forum/viewtopic.php?f=5&t=10
 Facebook https://www.facebook.com/rusEfiECU
 
 youtube https://www.youtube.com/user/rusefi
+
+
+= How to build the code? =
+
+We now use submodules:
+
+git submodule update --init
diff --git a/firmware/compile_and_program.bat b/firmware/compile_and_program.bat
index 414e59871e..475ffc3af0 100644
--- a/firmware/compile_and_program.bat
+++ b/firmware/compile_and_program.bat
@@ -7,6 +7,8 @@ rm -rf build\rusefi.bin
 
 rem todo add 
 rem git submodule update --init
+rem PS:
+rem git submodule update --recursive --remote
 rem magic once needed
 
 call update_version.bat