diff --git a/share/i18n/esdb/BIG5/Makefile b/share/i18n/esdb/BIG5/Makefile
index f7b1512893f..ac95f60e99e 100644
--- a/share/i18n/esdb/BIG5/Makefile
+++ b/share/i18n/esdb/BIG5/Makefile
@@ -16,7 +16,7 @@ Big5_$i_variable!= sed \
 # XXX: FIXME
 Big5-${i:S/:/@/}.src: Big5.src Big5.variable
 	sed -e 's/encoding/Big5-$i/' \
-		-e 's/variable/${Big5_$i_variable}/' \
+		-e 's/variable/${Big5_${i:S/@/:/}_variable}/' \
 		${.CURDIR}/Big5.src > $@
 	@echo ${.TARGET} >>.tmpfiles
 .endfor