diff --git a/git/git_client.cpp b/git/git_client.cpp
index f3c4ae1..2dcacb3 100644
--- a/git/git_client.cpp
+++ b/git/git_client.cpp
@@ -120,7 +120,10 @@ QStringList GitClient::gitShowReason() {
         // %h: commit (short form)
         // %s: commit message
         // %cI: commit date, strict ISO 8601 format
-        Command c("git show -s --format=\"c=%h m=%s d=%cI\"");
+        // Note: use master branch. By convention, there is a ChangeLog file
+        // in the root of the repository, which has to be always the last file
+        // to be checked in when the customer repository somehow changed.
+        Command c("git show origin/master -s --format=\"c=%h m=%s d=%cI\"");
         if (c.execute(m_customerRepository)) {
             QString const s = c.getCommandResult().trimmed();
             int const c = s.indexOf("c=");