diff --git a/Makefile b/Makefile
index 67b383b..f777d1a 100644
--- a/Makefile
+++ b/Makefile
@@ -126,7 +126,7 @@ define docker-build-mq
 	  --label IBM_PRODUCT_ID=$4 \
 	  --label IBM_PRODUCT_NAME=$5 \
 	  --label IBM_PRODUCT_VERSION=$6 \
-		--build-arg MQ_PACKAGES="$(MQ_PACKAGES)" \
+	  --build-arg MQ_PACKAGES="$(MQ_PACKAGES)" \
 	  .
 	# Stop the web server (will also remove the container)
 	$(DOCKER) kill $(BUILD_SERVER_CONTAINER)