diff --git a/delivery.yaml b/delivery.yaml
index f77c28e74..f5272b7c1 100644
--- a/delivery.yaml
+++ b/delivery.yaml
@@ -35,5 +35,6 @@ build_steps:
       cmd: |
         export PATH=$PATH:$HOME/go/bin
         export GOPATH=$HOME/go
+        export OPERATOR_TOP_DIR=$GOPATH/src/github.com/zalando-incubator
         cd $OPERATOR_TOP_DIR/postgres-operator
         go test ./...