diff --git a/PyMtApi5/client.py b/PyMtApi5/client.py
index 7d75a4de..757b281d 100644
--- a/PyMtApi5/client.py
+++ b/PyMtApi5/client.py
@@ -67,6 +67,7 @@ class Mt5ApiApp:
             "ChartOpen": self.process_chart_open,
             "ChartFirst": self.process_chart_first,
             "ChartNext": self.process_chart_next,
+            "ChartClose": self.process_chart_close,
         }
 
     def on_disconnect(self, error_msg=None):
@@ -500,6 +501,10 @@ class Mt5ApiApp:
         result = mtapi.chart_next(int(parameters))
         print(f"> ChartNext: response = {result}")
 
+    def process_chart_close(self, mtapi, parameters):
+        result = mtapi.chart_close(int(parameters))
+        print(f"> ChartClose: response = {result}")
+
     def mtapi_command_thread(self, mtapi):
         while mtapi.is_connected():
             filename = "client.cmd"
diff --git a/PyMtApi5/mt5apiclient.py b/PyMtApi5/mt5apiclient.py
index 93420214..5f989f7d 100644
--- a/PyMtApi5/mt5apiclient.py
+++ b/PyMtApi5/mt5apiclient.py
@@ -497,7 +497,7 @@ class Mt5ApiClient:
 
     # ChartOpen
     def chart_open(self, symbol: str, period: ENUM_TIMEFRAMES):
-        cmd_params = {"Symbol": symbol, "Timeframe": period};
+        cmd_params = {"Symbol": symbol, "Timeframe": period}
         return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartOpen, cmd_params)
 
     # ChartFirst
@@ -508,6 +508,10 @@ class Mt5ApiClient:
         cmd_params = {"ChartId": chart_id}
         return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartNext, cmd_params)
 
+    def chart_close(self, chart_id):
+        cmd_params = {"ChartId": chart_id}
+        return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartClose, cmd_params)
+
     # Private methods
 
     def __event_thread_func(self):