diff --git a/pkgs/stdenv/generic/setup-new-2.sh b/pkgs/stdenv/generic/setup-new-2.sh
index 82b38c6239d..628dae9221e 100644
--- a/pkgs/stdenv/generic/setup-new-2.sh
+++ b/pkgs/stdenv/generic/setup-new-2.sh
@@ -3,9 +3,9 @@ set -e
 test -z $NIX_GCC && NIX_GCC=@gcc@
 
 if [ -z ${system##*cygwin*} ]; then
-  PATH_DELIMITER=;
+  PATH_DELIMITER=';'
 else
-  PATH_DELIMITER=;
+  PATH_DELIMITER=':'
 fi