diff --git a/.drone.yml b/.drone.yml
index 22e53fe42b..5cc4cd360a 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -12,7 +12,7 @@ pipeline:
         environment:
             - CFLAGS=-O0
             - DB_CACHE=/cache
-            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE
+            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE CI_BUILD_NUMBER CI_JOB_NUMBER CI_JOB_ID
             - POSTGRESQL_URI=postgresql://postgres@postgresql:5432/
         commands:
             - echo "[extensions]" >> /root/.hgrc
diff --git a/setup.py b/setup.py
index 7f4dc81191..6879649885 100755
--- a/setup.py
+++ b/setup.py
@@ -49,7 +49,11 @@ if os.environ.get('CI_JOB_ID'):
     local_version.append(os.environ['CI_JOB_ID'])
 else:
     for build in ['CI_BUILD_NUMBER', 'CI_JOB_NUMBER']:
-        local_version.append(os.environ.get(build, ''))
+        if os.environ.get(build):
+            local_version.append(os.environ[build])
+        else:
+            local_version = []
+            break
 if local_version:
     version += '+' + '.'.join(local_version)
 
@@ -62,7 +66,9 @@ requires.append(get_require_version('trytond'))
 tests_require = []
 dependency_links = []
 if minor_version % 2:
-    dependency_links.append('https://trydevpi.tryton.org/')
+    dependency_links.append(
+        'https://trydevpi.tryton.org/?local_version='
+        + '.'.join(local_version))
 
 setup(name=name,
     version=version,