diff --git a/MtApi5/MtApi5.csproj b/MtApi5/MtApi5.csproj
index e836a6c3..f10e46e9 100755
--- a/MtApi5/MtApi5.csproj
+++ b/MtApi5/MtApi5.csproj
@@ -3,7 +3,7 @@
 		<TargetFramework>net8.0</TargetFramework>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<Nullable>enable</Nullable>
-		<VersionPrefix>2.0.0</VersionPrefix>
+		<VersionPrefix>2.0.1</VersionPrefix>
 		<BaseOutputPath>$(SolutionDir)build\products</BaseOutputPath>
 		<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
 	</PropertyGroup>
diff --git a/mq5/json.mqh b/mq5/json.mqh
index 1236b878..3a20923a 100755
--- a/mq5/json.mqh
+++ b/mq5/json.mqh
@@ -171,11 +171,17 @@ public:
      }
    string getString() { return _string; }
    void setString(string v) { _string=v; }
-   string toString() 
+   string toString()
    {
-    string string_var; 
-    StringConcatenate(string_var, "\"",_string,"\"");
-    return string_var; 
+    string escaped = _string;
+    StringReplace(escaped, "\\", "\\\\");
+    StringReplace(escaped, "\"", "\\\"");
+    StringReplace(escaped, "\n", "\\n");
+    StringReplace(escaped, "\r", "\\r");
+    StringReplace(escaped, "\t", "\\t");
+    string string_var;
+    StringConcatenate(string_var, "\"", escaped, "\"");
+    return string_var;
    }
   };
 // -----------------------------------------