diff --git a/config b/config
index bbb1e39..af9180e 100644
--- a/config
+++ b/config
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
-export MYSQL_IMAGE=${MYSQL_IMAGE:="$(awk -F '[ :]' '{print $2}' Dockerfile)"}
-export MYSQL_IMAGE_VERSION=${MYSQL_IMAGE_VERSION:="$(awk -F '[ :]' '{print $3}' Dockerfile)"}
+_DIR="$(dirname $0)"
+export MYSQL_IMAGE=${MYSQL_IMAGE:="$(awk -F '[ :]' '{print $2}' $_DIR/Dockerfile)"}
+export MYSQL_IMAGE_VERSION=${MYSQL_IMAGE_VERSION:="$(awk -F '[ :]' '{print $3}' $_DIR/Dockerfile)"}
 export MYSQL_ROOT=${MYSQL_ROOT:="$DOKKU_LIB_ROOT/services/mysql"}
 export MYSQL_HOST_ROOT=${MYSQL_HOST_ROOT:=$MYSQL_ROOT}