diff --git a/toolchain/internal/common.bzl b/toolchain/internal/common.bzl
index 08f4e19b..769cd849 100644
--- a/toolchain/internal/common.bzl
+++ b/toolchain/internal/common.bzl
@@ -118,7 +118,7 @@ def host_info(rctx):
     if _os == "linux" and not rctx.attr.exec_os:
         dist_name, dist_version = _linux_dist(rctx)
     else:
-        dist_name = os
+        dist_name = _os
         dist_version = ""
     return struct(
         arch = _arch,