diff --git a/tests/unit/test_pagure_driver.py b/tests/unit/test_pagure_driver.py
index 18330fe32b..4b7aa524a4 100644
--- a/tests/unit/test_pagure_driver.py
+++ b/tests/unit/test_pagure_driver.py
@@ -542,7 +542,8 @@ class TestPagureDriver(ZuulTestCase):
         self.assertEqual(0, len(self.history))
 
         # Set the score threshold as reached
-        A.threshold_reached = True
+        # Here we use None that means no specific score is required
+        A.threshold_reached = None
         self.fake_pagure.emitEvent(A.getPullRequestOpenedEvent())
         self.waitUntilSettled()
         # connection.canMerge is not validated
diff --git a/zuul/driver/pagure/pagureconnection.py b/zuul/driver/pagure/pagureconnection.py
index 0b910d2c7a..3d7ff6a9a8 100644
--- a/zuul/driver/pagure/pagureconnection.py
+++ b/zuul/driver/pagure/pagureconnection.py
@@ -795,9 +795,13 @@ class PagureConnection(BaseConnection):
         if self._hasRequiredStatusChecks(change):
             ci_flag = True
 
+        # By default project get -1 in "Minimum score to merge pull-request"
+        # But this makes the API to return None for threshold_reached. We need
+        # to handle this case as threshold_reached: True because it means
+        # no minimal score configured.
         threshold = pr.get('threshold_reached')
         if threshold is None:
-            self.log.debug("No threshold_reached attribute found")
+            threshold = True
 
         log.debug(
             'PR %s#%s mergeability details mergeable: %s '