diff --git a/src/parser/diff/ArcanistDiffParser.php b/src/parser/diff/ArcanistDiffParser.php
index 344c72c2..7a93b524 100644
--- a/src/parser/diff/ArcanistDiffParser.php
+++ b/src/parser/diff/ArcanistDiffParser.php
@@ -215,7 +215,7 @@ final class ArcanistDiffParser {
         // This is an SVN property change, probably from "svn diff".
         '(?P<type>Property changes on): (?P<cur>.+)',
         // This is a git commit message, probably from "git show".
-        '(?P<type>commit) (?P<hash>[a-f0-9]+)',
+        '(?P<type>commit) (?P<hash>[a-f0-9]+)(?: \(.*\))?',
         // This is a git diff, probably from "git show" or "git diff".
         // Note that the filenames may appear quoted.
         '(?P<type>diff --git) '.
diff --git a/src/parser/diff/__tests__/ArcanistDiffParserTestCase.php b/src/parser/diff/__tests__/ArcanistDiffParserTestCase.php
index 450cc7a5..bdfa724c 100644
--- a/src/parser/diff/__tests__/ArcanistDiffParserTestCase.php
+++ b/src/parser/diff/__tests__/ArcanistDiffParserTestCase.php
@@ -428,6 +428,7 @@ EOTEXT
         $this->assertEqual(1, count(reset($changes)->getHunks()));
         break;
       case 'git-commit.gitdiff':
+      case 'git-commit-logdecorate.gitdiff':
         $this->assertEqual(1, count($changes));
         $change = reset($changes);
         $this->assertEqual(
diff --git a/src/parser/diff/__tests__/data/git-commit-logdecorate.gitdiff b/src/parser/diff/__tests__/data/git-commit-logdecorate.gitdiff
new file mode 100644
index 00000000..70b64fd8
--- /dev/null
+++ b/src/parser/diff/__tests__/data/git-commit-logdecorate.gitdiff
@@ -0,0 +1,31 @@
+commit 76e2f1339c298c748aa0b52030799ed202a6537b (HEAD, refs/heads/master)
+Author: ngao <ngao@2c7ba8d8-a2f7-0310-a573-de162e16dcc7>
+Date:   Wed Mar 3 20:39:39 2010 +0000
+
+    Deprecating UIActionButton (Part 1)
+
+    Summary: Replaces calls to UIActionButton with <ui:button>.  I tested most
+             of these calls, but there were some that I didn't know how to
+             reach, so if you are one of the owners of this code, please test
+             your feature in my sandbox: www.ngao.devrs013.facebook.com
+
+             @brosenthal, I removed some logic that was setting a disabled state
+             on a UIActionButton, which is actually a no-op.
+
+    Reviewed By: brosenthal
+
+    Other Commenters: sparker, egiovanola
+
+    Test Plan: www.ngao.devrs013.facebook.com
+
+               Explicitly tested:
+               * ads creation flow (add keyword)
+               * ads manager (conversion tracking)
+               * help center (create a discussion)
+               * new user wizard (next step button)
+
+    Revert: OK
+
+    DiffCamp Revision: 94064
+
+    git-svn-id: svn+ssh://tubbs/svnroot/tfb/trunk/www@223593 2c7ba8d8
diff --git a/src/repository/api/git/ArcanistGitAPI.php b/src/repository/api/git/ArcanistGitAPI.php
index 3511e715..d4ba6c31 100644
--- a/src/repository/api/git/ArcanistGitAPI.php
+++ b/src/repository/api/git/ArcanistGitAPI.php
@@ -281,11 +281,12 @@ final class ArcanistGitAPI extends ArcanistRepositoryAPI {
       return '';
     } else if ($relative == self::GIT_MAGIC_ROOT_COMMIT) {
       // First commit.
-      list($stdout) = $this->execxLocal('log --format=medium HEAD');
+      list($stdout) = $this->execxLocal(
+        'log --no-decorate --format=medium HEAD');
     } else {
       // 2..N commits.
       list($stdout) = $this->execxLocal(
-        'log --first-parent --format=medium %s..HEAD',
+        'log --no-decorate --first-parent --format=medium %s..HEAD',
         $this->getRelativeCommit());
     }
     return $stdout;