diff --git a/build_all.bat b/build_all.bat
index 7967e2584d..bc7f5630c0 100644
--- a/build_all.bat
+++ b/build_all.bat
@@ -1,7 +1,7 @@
 @echo off
 rem build development version of the compiler; can be rerun safely
 if not exist csources (
-  git clone --depth 1 https://github.com/nim-lang/csources.git
+  git clone --depth 1 https://github.com/nim-lang/csources_v1.git csources
 )
 if not exist bin\nim.exe (
   cd csources