diff --git a/poky/bitbake/lib/bb/tests/utils.py b/poky/bitbake/lib/bb/tests/utils.py
index 4d78828..f4adf1d 100644
--- a/poky/bitbake/lib/bb/tests/utils.py
+++ b/poky/bitbake/lib/bb/tests/utils.py
@@ -29,6 +29,10 @@
         self.assertTrue(result < 0)
         result = bb.utils.vercmp_string('1.1', '1.0+1.1-beta1')
         self.assertTrue(result > 0)
+        result = bb.utils.vercmp_string('1a', '1a1')
+        self.assertTrue(result < 0)
+        result = bb.utils.vercmp_string('1a1', '1a')
+        self.assertTrue(result > 0)
         result = bb.utils.vercmp_string('1.', '1.1')
         self.assertTrue(result < 0)
         result = bb.utils.vercmp_string('1.1', '1.')