diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0cec496ab7d0aaf5b782d4241f02d2c264d3c6c2..b73f84c28910893e0baaa0a22e60ecd2c49330d3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -50,7 +50,7 @@ build-job:       # This job runs in the build stage, which runs first.
   script:
     - echo "Compiling the code..."
     - pip install h5py --only-binary h5py
-    - pip install .
+    - pip install -e .
     - echo "Compile complete."
   artifacts:
     paths: