diff --git a/watchdog/Dockerfile b/watchdog/Dockerfile
index 743ac22c..a02427e6 100644
--- a/watchdog/Dockerfile
+++ b/watchdog/Dockerfile
@@ -5,12 +5,13 @@ ARG GIT_COMMIT
 RUN mkdir -p /go/src/github.com/openfaas/faas/watchdog
 WORKDIR /go/src/github.com/openfaas/faas/watchdog
 
-COPY main.go            .
-COPY readconfig.go      .
-COPY readconfig_test.go .
-COPY requesthandler_test.go .
-COPY types types
-COPY version.go .
+COPY main.go            	.
+COPY handler.go			.
+COPY readconfig.go      	.
+COPY readconfig_test.go 	.
+COPY requesthandler_test.go 	.
+COPY types 			types
+COPY version.go 		.
 
 # Run a gofmt and exclude all vendored code.
 RUN test -z "$(gofmt -l $(find . -type f -name '*.go' -not -path "./vendor/*"))"