diff --git a/bin/gen_release_notes.py b/bin/gen_release_notes.py
index 54af4970157..07cd3817157 100755
--- a/bin/gen_release_notes.py
+++ b/bin/gen_release_notes.py
@@ -175,7 +175,7 @@ inliner = Inliner();
 
 async def gather_commits(version: str) -> str:
     p = await asyncio.create_subprocess_exec(
-        'git', 'log', '--oneline', f'mesa-{version}..', '--grep', r'\(Closes\|Fixes\): \(https\|#\).*',
+        'git', 'log', '--oneline', f'mesa-{version}..', '-i', '--grep', r'\(Closes\|Fixes\): \(https\|#\).*',
         stdout=asyncio.subprocess.PIPE)
     out, _ = await p.communicate()
     assert p.returncode == 0, f"git log didn't work: {version}"
@@ -193,7 +193,7 @@ async def parse_issues(commits: str) -> typing.List[str]:
         out = _out.decode().split('\n')
 
         for line in reversed(out):
-            if not line.startswith(('Closes:', 'Fixes:')):
+            if not line.lower().startswith(('closes:', 'fixes:')):
                 continue
             bug = line.split(':', 1)[1].strip()
             if (bug.startswith('https://gitlab.freedesktop.org/mesa/mesa')
diff --git a/bin/gen_release_notes_test.py b/bin/gen_release_notes_test.py
index 8ab76e451e6..bccbaf9fb92 100644
--- a/bin/gen_release_notes_test.py
+++ b/bin/gen_release_notes_test.py
@@ -176,6 +176,17 @@ async def test_gather_commits():
             ''',
             ['36', '37'],
         ),
+        (
+            '''\
+            Parse Fixes/Closes in weird cases
+
+            fixes: https://gitlab.freedesktop.org/mesa/mesa/issues/36
+            fiXES: https://gitlab.freedesktop.org/mesa/mesa/issues/37
+            closes: https://gitlab.freedesktop.org/mesa/mesa/issues/38
+            cloSES: https://gitlab.freedesktop.org/mesa/mesa/issues/39
+            ''',
+            ['36', '37', '38', '39'],
+        ),
     ])
 async def test_parse_issues(content: str, bugs: typing.List[str]) -> None:
     mock_com = mock.AsyncMock(return_value=(textwrap.dedent(content).encode(), ''))