diff --git a/os_user_tools/ip_trace.py b/os_user_tools/ip_trace.py
index 2ecbdf9..90e462f 100644
--- a/os_user_tools/ip_trace.py
+++ b/os_user_tools/ip_trace.py
@@ -50,8 +50,12 @@ def get_session():
                 "the %s via env[%s].\n" % (key, env)
             )
             return None
+    if OS_CACERT in os.environ:
+        verify = os.environ['OS_CACERT']
+    else:
+        verify = True
     auth = v3.Password(**auth_parameters)
-    keystone_session = session.Session(auth=auth)
+    keystone_session = session.Session(auth=auth, verify=verify)
     return keystone_session
 
 
diff --git a/os_user_tools/user_info.py b/os_user_tools/user_info.py
index eb16699..371a28c 100644
--- a/os_user_tools/user_info.py
+++ b/os_user_tools/user_info.py
@@ -44,7 +44,7 @@ def get_session():
                 "via env[%s].\n" % env
             )
             return None
-    if os.environ.has_key('OS_CACERT'):
+    if 'OS_CACERT' in os.environ:
         verify = os.environ['OS_CACERT']
     else:
         verify = True