diff --git a/src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubSCMSource.java b/src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubSCMSource.java
index 29d6d20fa..f9ef4f9d8 100644
--- a/src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubSCMSource.java
+++ b/src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubSCMSource.java
@@ -619,8 +619,7 @@ private void doRetrieve(SCMSourceCriteria criteria, SCMHeadObserver observer, Ta
                     }
                     continue;
                 }
-                boolean trusted = collaboratorNames != null
-                        && collaboratorNames.contains(ghPullRequest.getHead().getRepository().getOwnerName());
+                boolean trusted = isTrusted(ghPullRequest, collaboratorNames);
                 if (!trusted) {
                     listener.getLogger().format("    (not from a trusted source)%n");
                 }
@@ -807,6 +806,13 @@ private void doRetrieve(SCMSourceCriteria criteria, SCMHeadObserver observer, Ta
         }
     }
 
+    private boolean isTrusted(GHPullRequest ghPullRequest, Collection<String> collaboratorNames) {
+        String prUserLogin = ghPullRequest.getUser().getLogin();
+        String prRepoOwner = ghPullRequest.getHead().getRepository().getOwnerName();
+        return collaboratorNames != null
+                && (collaboratorNames.contains(prRepoOwner) || collaboratorNames.contains(prUserLogin));
+    }
+
     /**
      * {@inheritDoc}
      */