diff --git a/plugins/php/versions/81/zip.sh b/plugins/php/versions/81/zip.sh
index 79358999e..94a4fd8d1 100755
--- a/plugins/php/versions/81/zip.sh
+++ b/plugins/php/versions/81/zip.sh
@@ -29,6 +29,8 @@ else
 	BAK=''
 fi
 
+export PKG_CONFIG_PATH=/www/server/lib/libzip/lib/pkgconfig
+
 Install_lib()
 {