diff --git a/osu.Game/Rulesets/RulesetStore.cs b/osu.Game/Rulesets/RulesetStore.cs
index deabea57ef..eb5271aa17 100644
--- a/osu.Game/Rulesets/RulesetStore.cs
+++ b/osu.Game/Rulesets/RulesetStore.cs
@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Reflection;
@@ -173,7 +174,7 @@ namespace osu.Game.Rulesets
         {
             var filename = Path.GetFileNameWithoutExtension(file);
 
-            if (loadedAssemblies.Values.Any(t => t.Namespace == filename))
+            if (loadedAssemblies.Values.Any(t => Path.GetFileNameWithoutExtension(t.Assembly.Location) == filename))
                 return;
 
             try