diff --git a/nim.nimble b/nim.nimble
index 5d1be49b1d..713fc92560 100644
--- a/nim.nimble
+++ b/nim.nimble
@@ -9,6 +9,6 @@ skipDirs = @["build" , "changelogs" , "ci" , "csources_v2" , "drnim" , "nimdoc",
 
 before install:
   when defined(windows):
-    exec "./build_all.bat"
+    exec "build_all.bat"
   else:
     exec "./build_all.sh"