diff --git a/spec/Akeneo/Git/PullRequestMergerSpec.php b/spec/Akeneo/Git/PullRequestMergerSpec.php
index 386cbdb..61bd392 100644
--- a/spec/Akeneo/Git/PullRequestMergerSpec.php
+++ b/spec/Akeneo/Git/PullRequestMergerSpec.php
@@ -30,6 +30,9 @@ public function it_merges_a_pull_request(Client $client, PullRequest $githubMerg
             'base' => [
                 'user' => ['login' => 'nelson'],
                 'repo' => ['name' => 'akeneo/repo'],
+                'sha' => 'master_branch_sha',
+            ],
+            'head' => [
                 'sha' => 'pr_sha',
             ],
         ]);
diff --git a/src/Akeneo/Git/PullRequestMerger.php b/src/Akeneo/Git/PullRequestMerger.php
index 20b18c3..6a554e6 100644
--- a/src/Akeneo/Git/PullRequestMerger.php
+++ b/src/Akeneo/Git/PullRequestMerger.php
@@ -24,6 +24,7 @@ public function mergePullRequest(array $pullRequest): void
         $this->eventDispatcher->dispatch(
             new GenericEvent($this, [
                 'number' => $pullRequest['number'],
+                'commit_sha' => $pullRequest['head']['sha'],
             ]),
             Events::PRE_GITHUB_MERGE_PR,
         );
@@ -33,7 +34,7 @@ public function mergePullRequest(array $pullRequest): void
             $pullRequest['base']['repo']['name'],
             $pullRequest['number'],
             $mergeTitle,
-            $pullRequest['base']['sha'],
+            $pullRequest['head']['sha'],
         );
 
         $this->eventDispatcher->dispatch(
diff --git a/src/Akeneo/Resources/translations/en.fr.yml b/src/Akeneo/Resources/translations/en.fr.yml
index f4f76a8..bdbb4e9 100644
--- a/src/Akeneo/Resources/translations/en.fr.yml
+++ b/src/Akeneo/Resources/translations/en.fr.yml
@@ -29,5 +29,5 @@ pre_github_check_diff: Vérifie les différences avec la branche courante
 post_github_check_diff: '%diff% différence(s) trouvée(s) !'
 pre_crowdin_packages: Vérifie les archives à mettre à jour
 post_crowdin_packages: '%count% archive(s) trouvée(s) !'
-pre_github_merge_pr: 'Merge Pull Request %number%'
+pre_github_merge_pr: 'Merge Pull Request %number% . Commit: %commit_sha% '
 post_github_merge_pr: 'Pull Request mergée!'
diff --git a/src/Akeneo/Resources/translations/en.yml b/src/Akeneo/Resources/translations/en.yml
index a4601ac..b59b5e8 100644
--- a/src/Akeneo/Resources/translations/en.yml
+++ b/src/Akeneo/Resources/translations/en.yml
@@ -31,5 +31,5 @@ pre_crowdin_packages: 'Checking packages to update'
 post_crowdin_packages: '%count% package(s) found!'
 nelson_rename: 'Rename %from% to %to%'
 nelson_drop_useless: 'Drop useless file %file%'
-pre_github_merge_pr: 'Merging Pull Request %number%'
+pre_github_merge_pr: 'Merging Pull Request %number% . Commit: %commit_sha% '
 post_github_merge_pr: 'Pull Request merged!'