diff --git a/build/Dockerfile b/build/Dockerfile
index 33e9b7a..7484623 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -29,10 +29,11 @@ FROM scratch
 
 WORKDIR /app/watch_tower
 ENV GOPATH=$GOPATH
+ENV CONFIG=$CONFIG
 
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 COPY --from=builder /go/bin/watch_tower /go/bin/watch_tower
-COPY cmd/watch_tower/config.yml /app/watch_tower/
+COPY cmd/watch_tower/$CONFIG /app/watch_tower/
 COPY cmd/watch_tower/abi/ /app/watch_tower/abi/
 
-ENTRYPOINT ["/go/bin/watch_tower", "-c", "config.yml"]
\ No newline at end of file
+ENTRYPOINT ["/go/bin/watch_tower", "-c", "$CONFIG"]
\ No newline at end of file
diff --git a/stack.yml b/stack.yml
index fc68a54..b14247f 100644
--- a/stack.yml
+++ b/stack.yml
@@ -10,6 +10,8 @@ services:
     deploy:
       mode: replicated
       replicas: 1
+    env:
+      CONFIG: config.test.yml
     secrets:
       - watch-tower