diff --git a/scripts/lib/checklayer/cases/common.py b/scripts/lib/checklayer/cases/common.py
index b82304e361..4495f71b24 100644
--- a/scripts/lib/checklayer/cases/common.py
+++ b/scripts/lib/checklayer/cases/common.py
@@ -14,7 +14,7 @@ class CommonCheckLayer(OECheckLayerTestCase):
         # The top-level README file may have a suffix (like README.rst or README.txt).
         readme_files = glob.glob(os.path.join(self.tc.layer['path'], '[Rr][Ee][Aa][Dd][Mm][Ee]*'))
         self.assertTrue(len(readme_files) > 0,
-                        msg="Layer doesn't contains README file.")
+                        msg="Layer doesn't contain a README file.")
 
         # There might be more than one file matching the file pattern above
         # (for example, README.rst and README-COPYING.rst). The one with the shortest