diff --git a/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs b/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
index c9d4e43422..a70077163e 100644
--- a/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
+++ b/Emby.Server.Implementations/Library/CoreResolutionIgnoreRule.cs
@@ -149,7 +149,7 @@ namespace Emby.Server.Implementations.Library
                 }
 
                 // Ignore samples
-                Match m = Regex.Match(filename,"\bsample\b",RegexOptions.IgnoreCase);
+                Match m = Regex.Match(filename,@"\bsample\b",RegexOptions.IgnoreCase);
 
                 return m.Success;
             }