diff --git a/Pilz.Net/Api/ApiServer.cs b/Pilz.Net/Api/ApiServer.cs
index a6967b4..55446c7 100644
--- a/Pilz.Net/Api/ApiServer.cs
+++ b/Pilz.Net/Api/ApiServer.cs
@@ -101,7 +101,10 @@ public class ApiServer(string apiUrl) : IApiServer
             }
         }
         if (useRegEx)
+        {
             url = url.Replace(".", "\\."); // Escape special characters
+            url = $"^{url}$"; // Define start and end of line (matches whole string)
+        }
 
         // Add handler
         Log.InfoFormat("Added handler for {0}", attribute.Route);