diff --git a/tdutils/td/utils/OptionsParser.cpp b/tdutils/td/utils/OptionsParser.cpp
index f83216359..9090cdcf4 100644
--- a/tdutils/td/utils/OptionsParser.cpp
+++ b/tdutils/td/utils/OptionsParser.cpp
@@ -17,7 +17,7 @@
 
 namespace td {
 
-void OptionsParser::set_description(std::string description) {
+void OptionsParser::set_description(string description) {
   description_ = std::move(description);
 }
 
@@ -44,7 +44,6 @@ Result<int> OptionsParser::run(int argc, char *argv[]) {
   char buff[1024];
   StringBuilder sb(MutableSlice{buff, sizeof(buff)});
   for (auto &opt : options_) {
-    CHECK(opt.type != Option::Type::OptionalArg);
     sb << opt.short_key;
     if (opt.type == Option::Type::Arg) {
       sb << ":";
@@ -112,15 +111,9 @@ StringBuilder &operator<<(StringBuilder &sb, const OptionsParser &o) {
     if (!opt.long_key.empty()) {
       sb << "|--" << opt.long_key;
     }
-    if (opt.type == OptionsParser::Option::Type::OptionalArg) {
-      sb << "[";
-    }
     if (opt.type != OptionsParser::Option::Type::NoArg) {
       sb << "<arg>";
     }
-    if (opt.type == OptionsParser::Option::Type::OptionalArg) {
-      sb << "]";
-    }
     sb << "\t" << opt.description;
     sb << "\n";
   }
diff --git a/tdutils/td/utils/OptionsParser.h b/tdutils/td/utils/OptionsParser.h
index 1464379b8..fea61a1ca 100644
--- a/tdutils/td/utils/OptionsParser.h
+++ b/tdutils/td/utils/OptionsParser.h
@@ -18,20 +18,20 @@ namespace td {
 class OptionsParser {
   class Option {
    public:
-    enum class Type { NoArg, Arg, OptionalArg };
+    enum class Type { NoArg, Arg };
     Type type;
     char short_key;
-    std::string long_key;
-    std::string description;
+    string long_key;
+    string description;
     std::function<Status(Slice)> arg_callback;
   };
 
- public:
-  void set_description(std::string description);
-
   void add_option(Option::Type type, char short_key, Slice long_key, Slice description,
                   std::function<Status(Slice)> callback);
 
+ public:
+  void set_description(string description);
+
   void add_option(char short_key, Slice long_key, Slice description, std::function<Status(Slice)> callback);
 
   void add_option(char short_key, Slice long_key, Slice description, std::function<Status(void)> callback);
@@ -41,8 +41,8 @@ class OptionsParser {
   friend StringBuilder &operator<<(StringBuilder &sb, const OptionsParser &o);
 
  private:
-  std::vector<Option> options_;
-  std::string description_;
+  vector<Option> options_;
+  string description_;
 };
 
 }  // namespace td