diff --git a/apps/opencs/model/world/universalid.cpp b/apps/opencs/model/world/universalid.cpp
index 1cc4ca3c4..d360fde8f 100644
--- a/apps/opencs/model/world/universalid.cpp
+++ b/apps/opencs/model/world/universalid.cpp
@@ -80,7 +80,7 @@ namespace
         { CSMWorld::UniversalId::Class_RefRecord, CSMWorld::UniversalId::Type_Static, "Static", ":./static.png" },
         { CSMWorld::UniversalId::Class_RefRecord, CSMWorld::UniversalId::Type_Weapon, "Weapon", ":./weapon.png" },
         { CSMWorld::UniversalId::Class_SubRecord, CSMWorld::UniversalId::Type_Reference, "Reference", 0 },
-
+        { CSMWorld::UniversalId::Class_SubRecord, CSMWorld::UniversalId::Type_Filter, "Filter", 0 },
         { CSMWorld::UniversalId::Class_None, CSMWorld::UniversalId::Type_None, 0, 0 } // end marker
     };
 
@@ -149,6 +149,22 @@ CSMWorld::UniversalId::UniversalId (Type type) : mArgumentType (ArgumentType_Non
             return;
         }
 
+    for (int i=0; sIdArg[i].mName; ++i)
+        if (type==sIdArg[i].mType)
+        {
+            mArgumentType = ArgumentType_Id;
+            mClass = sIdArg[i].mClass;
+            return;
+        }
+
+    for (int i=0; sIndexArg[i].mName; ++i)
+        if (type==sIndexArg[i].mType)
+        {
+            mArgumentType = ArgumentType_Index;
+            mClass = sIndexArg[i].mClass;
+            return;
+        }
+
     throw std::logic_error ("invalid argument-less UniversalId type");
 }
 
diff --git a/apps/opencs/model/world/universalid.hpp b/apps/opencs/model/world/universalid.hpp
index 341b941e6..aa0cdacc0 100644
--- a/apps/opencs/model/world/universalid.hpp
+++ b/apps/opencs/model/world/universalid.hpp
@@ -34,7 +34,7 @@ namespace CSMWorld
 
             enum Type
             {
-                Type_None,
+                Type_None = 0,
                 Type_Globals,
                 Type_Global,
                 Type_VerificationResults,
@@ -89,6 +89,8 @@ namespace CSMWorld
                 Type_Filters
             };
 
+            enum { NumberOfTypes = Type_Filters+1 };
+
         private:
 
             Class mClass;
@@ -102,7 +104,6 @@ namespace CSMWorld
             UniversalId (const std::string& universalId);
 
             UniversalId (Type type = Type_None);
-            ///< Using a type for a non-argument-less UniversalId will throw an exception.
 
             UniversalId (Type type, const std::string& id);
             ///< Using a type for a non-ID-argument UniversalId will throw an exception.