diff --git a/lib/gdbgitdb.py b/lib/gdbgitdb.py
index 3f86f55..f412ecb 100644
--- a/lib/gdbgitdb.py
+++ b/lib/gdbgitdb.py
@@ -6,6 +6,22 @@ from sumfiles import get_web_base
 import os.path
 from datetime import datetime
 import git
+import re
+
+def get_builder_commit_id (builder, commit):
+    """Get the commit hash in the BUILDER's repository which points to the
+log files of the COMMIT that was tested."""
+    repodir = os.path.join (get_web_base (), builder)
+    repo = git.Repo.init (path = repodir)
+    commit_id_re = re.compile ("^\d{8}-\d{6}-%s$" % commit)
+
+    for t in repo.tags:
+        m = commit_id_re.match (t.name)
+        if not m:
+            continue
+        return t.commit.__str__ ()
+
+    return None
 
 class SaveGDBResults (ShellCommand):
     name = 'save build results'
diff --git a/master.cfg b/master.cfg
index b06e2d9..a2f8af8 100644
--- a/master.cfg
+++ b/master.cfg
@@ -146,7 +146,10 @@ send to the gdb-testers mailing list."""
     # URL to find more info about what went wrong.
     text += "Log URL(s):\n"
     for ss in ss_list:
-        text += "\t<%s/%s/.git/log/?qt=grep&q=%s>\n" % (git_url, name, ss.revision)
+        text += "\t<%s/%s/.git/tree/?id=%s>\n" % (git_url, name,
+                                                  get_builder_commit_id (name,
+                                                                         ss.revision))
+#        text += "\t<%s/%s/.git/log/?qt=grep&q=%s>\n" % (git_url, name, ss.revision)
 #        text += "\t<%sresults/%s/%s>\n" % (master_status.getBuildbotURL (), name, ss.revision)
 
     # Who's to blame?