diff --git a/lib/eventFactory.js b/lib/eventFactory.js
index c7882af1..de4a1910 100644
--- a/lib/eventFactory.js
+++ b/lib/eventFactory.js
@@ -709,8 +709,7 @@ class EventFactory extends BaseFactory {
             creator: config.creator || null,
             meta: config.meta || {},
             pr: {},
-            prNum,
-            baseBranch: config.baseBranch || null
+            prNum
         };
         let prevChainPR = '';
         let decoratedCommit;
@@ -772,6 +771,17 @@ class EventFactory extends BaseFactory {
                         }
                     }
 
+                    if (config.baseBranch) {
+                        // cases triggered by webhook or when there is a parentEvent such as restart
+                        modelConfig.baseBranch = config.baseBranch;
+                    } else if (prInfo && prInfo.baseBranch) {
+                        // cases of PR events created from the Start button
+                        modelConfig.baseBranch = prInfo.baseBranch;
+                    } else if (p.scmRepo && p.scmRepo.branch) {
+                        // cases triggered by remote trigger and commit events created from the Start button
+                        modelConfig.baseBranch = p.scmRepo.branch;
+                    }
+
                     if (prTitle) {
                         modelConfig.pr.title = prTitle;
                     }