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
diff --git a/build_all.sh b/build_all.sh
index d3bba2211c..0a6a3ce5e0 100644
--- a/build_all.sh
+++ b/build_all.sh
@@ -11,7 +11,7 @@ echo_run(){
   "$@"
 }
 
-[ -d csources ] || echo_run git clone -q --depth 1 https://github.com/nim-lang/csources.git
+[ -d csources ] || echo_run git clone -q --depth 1 https://github.com/nim-lang/csources_v1.git csources
 
 nim_csources=bin/nim_csources