diff --git a/src/Raven.Server/Web/RequestHandler.cs b/src/Raven.Server/Web/RequestHandler.cs
index 7218f3af9c2f..60009f21da92 100644
--- a/src/Raven.Server/Web/RequestHandler.cs
+++ b/src/Raven.Server/Web/RequestHandler.cs
@@ -366,7 +366,7 @@ internal string GetStringQueryString(string name, bool required = true)
                 return null;
             }
 
-            return val[0];
+            return System.Text.RegularExpressions.Regex.Replace(val[0], "[^a-zA-Z0-9]", "");
         }
 
         internal char? GetCharQueryString(string name, bool required = true)