--- Makefile
+++ Makefile
@@ -377,6 +377,7 @@
 
 tzselect:	tzselect.ksh
 		sed \
+			-e 's|#! /bin/ksh|#! /bin/sh|g' \
 			-e 's|AWK=[^}]*|AWK=$(AWK)|g' \
 			-e 's|TZDIR=[^}]*|TZDIR=$(TZDIR)|' \
 			-e 's|\(TZCODE_VERSION\)=.*|\1=$(TZCODE_VERSION)|' \