diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 985a333419c93f53a3945d8818799ebb2c1ba252..9a481a95a62a02e226f9e4c009ed128db065a5cd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,6 +17,7 @@ cache:
 build:
   stage: build
   script:
+    - env
     - ./mvnw $MAVEN_CLI_OPTS $MAVEN_OPTS package
   tags:
     - vips-java