diff --git a/app/models/manageiq/providers/base_manager.rb b/app/models/manageiq/providers/base_manager.rb
index 8f963edb5f3..dafd2667b22 100644
--- a/app/models/manageiq/providers/base_manager.rb
+++ b/app/models/manageiq/providers/base_manager.rb
@@ -25,7 +25,11 @@ def refresher
     end
 
     def http_proxy_uri
-      VMDB::Util.http_proxy_uri(emstype.try(:to_sym)) || VMDB::Util.http_proxy_uri
+      self.class.http_proxy_uri
+    end
+
+    def self.http_proxy_uri
+      VMDB::Util.http_proxy_uri(ems_type.try(:to_sym)) || VMDB::Util.http_proxy_uri
     end
 
     def self.default_blacklisted_event_names