diff --git a/gio/tests/codegen.py b/gio/tests/codegen.py
index d3a09bae7..031776537 100644
--- a/gio/tests/codegen.py
+++ b/gio/tests/codegen.py
@@ -55,7 +55,7 @@ class TestCodegen(unittest.TestCase):
     cwd = ""
 
     def setUp(self):
-        self.timeout_seconds = 10  # seconds per test
+        self.timeout_seconds = 100  # seconds per test
         self.tmpdir = tempfile.TemporaryDirectory()
         self.cwd = os.getcwd()
         os.chdir(self.tmpdir.name)