diff --git a/src/ApplicationLogs/LogReader.cs b/src/ApplicationLogs/LogReader.cs
index 8405cab54..a2fd56e16 100644
--- a/src/ApplicationLogs/LogReader.cs
+++ b/src/ApplicationLogs/LogReader.cs
@@ -165,14 +165,7 @@ void IPersistencePlugin.OnPersist(Block block, StoreView snapshot, IReadOnlyList
 
         static string GetExceptionMessage(Exception exception)
         {
-            if (exception == null) return null;
-
-            if (exception.InnerException != null)
-            {
-                return GetExceptionMessage(exception.InnerException);
-            }
-
-            return exception.Message;
+            return exception?.GetBaseException().Message;
         }
     }
 }
diff --git a/src/RpcServer/RpcServer.SmartContract.cs b/src/RpcServer/RpcServer.SmartContract.cs
index 4fcc68d51..1f19e5c65 100644
--- a/src/RpcServer/RpcServer.SmartContract.cs
+++ b/src/RpcServer/RpcServer.SmartContract.cs
@@ -206,14 +206,7 @@ protected virtual JObject GetUnclaimedGas(JArray _params)
 
         static string GetExceptionMessage(Exception exception)
         {
-            if (exception == null) return null;
-
-            if (exception.InnerException != null)
-            {
-                return exception.InnerException.Message;
-            }
-
-            return exception.Message;
+            return exception?.GetBaseException().Message;
         }
     }
 }