diff --git a/glanceclient/common/http.py b/glanceclient/common/http.py
index 72710fb..9d96342 100644
--- a/glanceclient/common/http.py
+++ b/glanceclient/common/http.py
@@ -435,7 +435,8 @@ class VerifiedHTTPSConnection(HTTPSConnection):
             try:
                 self.context.load_verify_locations(self.cacert)
             except Exception as e:
-                msg = 'Unable to load CA from "%s"' % (self.cacert, e)
+                msg = ('Unable to load CA from "%(cacert)s" %(exc)s' %
+                       dict(cacert=self.cacert, exc=e))
                 raise exc.SSLConfigurationError(msg)
         else:
             self.context.set_default_verify_paths()
diff --git a/tests/test_http.py b/tests/test_http.py
index 6a74535..a76a977 100644
--- a/tests/test_http.py
+++ b/tests/test_http.py
@@ -293,6 +293,23 @@ class TestHostResolutionError(testtools.TestCase):
         self.mock.UnsetStubs()
 
 
+class TestVerifiedHTTPSConnection(testtools.TestCase):
+    """Test fixture for glanceclient.common.http.VerifiedHTTPSConnection."""
+
+    def test_setcontext_unable_to_load_cacert(self):
+        """Add this UT case with Bug#1265730."""
+        self.assertRaises(exc.SSLConfigurationError,
+                          http.VerifiedHTTPSConnection,
+                          "127.0.0.1",
+                          None,
+                          None,
+                          None,
+                          "gx_cacert",
+                          None,
+                          False,
+                          True)
+
+
 class TestResponseBodyIterator(testtools.TestCase):
 
     def test_iter_default_chunk_size_64k(self):