diff --git a/build.sh b/build.sh
index ad9c9b6..51385f7 100755
--- a/build.sh
+++ b/build.sh
@@ -1,8 +1,8 @@
 #!/bin/sh
 
+DOCKERFILE=${1:-Dockerfile}
 DOCKER_TAG="haproxy"
 HAPROXY_REPO="p1458402064ad02bbe6a925de6df272994154a72a9"
-DOCKERFILE=${1:-Dockerfile}
 
 HAPROXY_MINOR_OLD=$(awk '/^ENV HAPROXY_MINOR/ {print $NF}' ${DOCKERFILE})
 
diff --git a/update.sh b/update.sh
index 9d6a826..c6a5aeb 100755
--- a/update.sh
+++ b/update.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 set -e
 
-DOCKERFILE=$1
+DOCKERFILE=${1:-Dockerfile}
 HAPROXY_BRANCH=1.7
 HAPROXY_SRC_URL=http://www.haproxy.org/download