diff --git a/passbook/providers/oauth/views/oauth2.py b/passbook/providers/oauth/views/oauth2.py
index 301d3e432..0196be52a 100644
--- a/passbook/providers/oauth/views/oauth2.py
+++ b/passbook/providers/oauth/views/oauth2.py
@@ -69,7 +69,7 @@ class AuthorizationFlowInitView(AccessMixin, View):
                 PLAN_CONTEXT_NONCE: request.GET.get(PLAN_CONTEXT_NONCE),
             },
         )
-        plan.stages.append(in_memory_stage(OAuth2Stage))
+        plan.append(in_memory_stage(OAuth2Stage))
         self.request.session[SESSION_KEY_PLAN] = plan
         return redirect_with_qs(
             "passbook_flows:flow-executor-shell",
diff --git a/passbook/providers/saml/views.py b/passbook/providers/saml/views.py
index 8c182ecc3..9b2a3fb11 100644
--- a/passbook/providers/saml/views.py
+++ b/passbook/providers/saml/views.py
@@ -89,7 +89,7 @@ class SAMLSSOView(LoginRequiredMixin, SAMLAccessMixin, View):
             self.request,
             {PLAN_CONTEXT_SSO: True, PLAN_CONTEXT_APPLICATION: self.application},
         )
-        plan.stages.append(in_memory_stage(SAMLFlowFinalView))
+        plan.append(in_memory_stage(SAMLFlowFinalView))
         self.request.session[SESSION_KEY_PLAN] = plan
         return redirect_with_qs(
             "passbook_flows:flow-executor-shell",