diff --git a/src/tools/win32tzlist.pl b/src/tools/win32tzlist.pl
index 657f7d4879c..457462df274 100755
--- a/src/tools/win32tzlist.pl
+++ b/src/tools/win32tzlist.pl
@@ -18,7 +18,18 @@
 use strict;
 use warnings;
 
-use Win32::Registry;
+use Config;
+
+our $HKEY_LOCAL_MACHINE;
+
+BEGIN
+{
+	if ($Config{osname} eq 'MSWin32' || $Config{osname} eq 'msys')
+	{
+		require Win32::Registry;
+		Win32::Registry->import;
+	}
+}
 
 my $tzfile = 'src/bin/initdb/findtimezone.c';