diff --git a/src/MMLib.SwaggerForOcelot/Extensions/JsonExtensions.cs b/src/MMLib.SwaggerForOcelot/Extensions/JsonExtensions.cs
new file mode 100644
index 0000000..f56c288
--- /dev/null
+++ b/src/MMLib.SwaggerForOcelot/Extensions/JsonExtensions.cs
@@ -0,0 +1,30 @@
+using Newtonsoft.Json.Linq;
+using System;
+
+namespace MMLib.SwaggerForOcelot.Extensions;
+
+/// <summary>
+///
+/// </summary>
+public static class JsonExtensions
+{
+    /// <summary>
+    ///
+    /// </summary>
+    /// <param name="obj"></param>
+    /// <param name="swaggerJson"></param>
+    /// <returns></returns>
+    public static bool TryParse(this string swaggerJson, out JObject jObj)
+    {
+        try
+        {
+            jObj = JObject.Parse(swaggerJson);
+            return true;
+        }
+        catch (Exception ex)
+        {
+            jObj = null;
+            return false;
+        }
+    }
+}
diff --git a/src/MMLib.SwaggerForOcelot/Transformation/SwaggerJsonTransformer.Consul.cs b/src/MMLib.SwaggerForOcelot/Transformation/SwaggerJsonTransformer.Consul.cs
index f0d6b2a..d7533ba 100644
--- a/src/MMLib.SwaggerForOcelot/Transformation/SwaggerJsonTransformer.Consul.cs
+++ b/src/MMLib.SwaggerForOcelot/Transformation/SwaggerJsonTransformer.Consul.cs
@@ -1,4 +1,5 @@
 using MMLib.SwaggerForOcelot.Configuration;
+using MMLib.SwaggerForOcelot.Extensions;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using System;
@@ -33,7 +34,9 @@ public string AddServiceNamePrefixToPaths(string swaggerJson, SwaggerEndPointOpt
         if (string.IsNullOrEmpty(serviceName))
             return swaggerJson;
 
-        var swaggerObj = JObject.Parse(swaggerJson);
+        if (!swaggerJson.TryParse(out var swaggerObj))
+            return swaggerJson;
+
         if (!swaggerObj.TryGetValue(OpenApiProperties.Paths, out var swaggerPaths))
             return swaggerJson;