lib/PublicInbox/Spawn.pm | 2 +-

diff --git a/lib/PublicInbox/Spawn.pm b/lib/PublicInbox/Spawn.pm
index 376d219096e7d66d3e781f3e3cf1030c2791ed54..86f66605f0a6540180d9bf9f05ff093241511138 100644
--- a/lib/PublicInbox/Spawn.pm
+++ b/lib/PublicInbox/Spawn.pm
@@ -343,7 +343,7 @@
 sub which ($) {
 	my ($file) = @_;
 	return $file if index($file, '/') >= 0;
-	foreach my $p (split(':', $ENV{PATH})) {
+	for my $p (split(/:/, $ENV{PATH})) {
 		$p .= "/$file";
 		return $p if -x $p;
 	}