diff --git a/plugins/tar/functions b/plugins/tar/functions
index ef75baddc..166488b87 100755
--- a/plugins/tar/functions
+++ b/plugins/tar/functions
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
 source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+source "$PLUGIN_AVAILABLE_PATH/config/functions"
 
 tar_build() {
   declare desc="builds apps from tarball via command line"