diff --git a/libbot/__main__.py b/libbot/__main__.py
index 72a72b4..9d95b33 100644
--- a/libbot/__main__.py
+++ b/libbot/__main__.py
@@ -4,6 +4,8 @@ from typing import Any, Union
 import aiofiles
 from ujson import dumps, loads
 
+from libbot.sync import nested_set
+
 
 async def json_read(path: Union[str, Path]) -> Any:
     """Read contents of a JSON file
@@ -79,14 +81,7 @@ async def config_set(
         * *path (`str`): Path to the key of the target
         * config_file (`Union[str, Path]`, *optional*): Path-like object or path as a string of a location of the config file. Defaults to `"config.json"`
     """
-    this_dict = await json_read(config_file)
-    string = "this_dict"
-    for arg in path:
-        string += f'["{arg}"]'
-    if type(value) in [str]:
-        string += f'["{key}"] = "{value}"'
-    else:
-        string += f'["{key}"] = {value}'
-    exec(string)
-    await json_write(this_dict, config_file)
+    await json_write(
+        nested_set(await json_read(config_file), value, *(*path, key)), config_file
+    )
     return
diff --git a/libbot/sync/__init__.py b/libbot/sync/__init__.py
index 3fbfbeb..5b89d75 100644
--- a/libbot/sync/__init__.py
+++ b/libbot/sync/__init__.py
@@ -29,6 +29,31 @@ def json_write(data: Any, path: Union[str, Path]) -> None:
         f.write(dumps(data, ensure_ascii=False, escape_forward_slashes=False, indent=4))
 
 
+def nested_set(target: dict, value: Any, *path: str, create_missing=True) -> dict:
+    """Set the key by its path to the value
+
+    ### Args:
+        * target (`dict`): Dictionary to perform modifications on
+        * value (`Any`): Any data
+        * *path (`str`): Path to the key of the target
+        * create_missing (`bool`, *optional*): Create keys on the way if they're missing. Defaults to `True`
+
+    ### Returns:
+        * `dict`: Changed dictionary
+    """
+    d = target
+    for key in path[:-1]:
+        if key in d:
+            d = d[key]
+        elif create_missing:
+            d = d.setdefault(key, {})
+        else:
+            return target
+    if path[-1] in d or create_missing:
+        d[path[-1]] = value
+    return target
+
+
 def config_get(
     key: str, *path: str, config_file: Union[str, Path] = "config.json"
 ) -> Any:
@@ -78,14 +103,5 @@ def config_set(
         * *path (`str`): Path to the key of the target
         * config_file (`Union[str, Path]`, *optional*): Path-like object or path as a string of a location of the config file. Defaults to `"config.json"`
     """
-    this_dict = json_read(config_file)
-    string = "this_dict"
-    for arg in path:
-        string += f'["{arg}"]'
-    if type(value) in [str]:
-        string += f'["{key}"] = "{value}"'
-    else:
-        string += f'["{key}"] = {value}'
-    exec(string)
-    json_write(this_dict, config_file)
+    json_write(nested_set(json_read(config_file), value, *(*path, key)), config_file)
     return