diff --git a/src/plugins/git/commitdata.h b/src/plugins/git/commitdata.h
index 40fb452313c..8be3ad3993e 100644
--- a/src/plugins/git/commitdata.h
+++ b/src/plugins/git/commitdata.h
@@ -109,8 +109,6 @@ private:
     bool checkLine(const QString &stateInfo, const QString &file);
 };
 
-bool operator<(const CommitData::StateFilePair &a, const CommitData::StateFilePair &b);
-
 } // namespace Internal
 } // namespace Git