diff --git a/developer_manual/app/configuration.rst b/developer_manual/app/configuration.rst
index 15c22497d..b83e3e0e3 100644
--- a/developer_manual/app/configuration.rst
+++ b/developer_manual/app/configuration.rst
@@ -4,7 +4,7 @@ Configuration
 
 .. sectionauthor:: Bernhard Posselt <dev@bernhard-posselt.com>
 
-The config allows the app to set global, app and user settings can be injected from the ServerContainer. All values are saved as strings and must be casted to the correct value.
+The config that allows the app to set global, app and user settings can be injected from the ServerContainer. All values are saved as strings and must be cast to the correct value.
 
 
 .. code-block:: php
@@ -42,7 +42,7 @@ The config allows the app to set global, app and user settings can be injected f
 
 System values
 =============
-System values are saved in the :file:`config/config.php` and allow to modify and read the global configuration: 
+System values are saved in the :file:`config/config.php` and allow the app to modify and read the global configuration: 
 
 .. code-block:: php
 
@@ -135,4 +135,4 @@ User values are saved in the database per user and app and are good for saving u
             $this->config->setUserValue($userId, $this->appName, $key, $value);
         }
 
-    }
\ No newline at end of file
+    }
diff --git a/developer_manual/app/controllers.rst b/developer_manual/app/controllers.rst
index 64240e594..e000c9d07 100644
--- a/developer_manual/app/controllers.rst
+++ b/developer_manual/app/controllers.rst
@@ -168,7 +168,7 @@ would be passed in as the string *'false'* which is not what one would expect. T
 
     }
 
-The following types will be casted:
+The following types will be cast:
 
 * **bool** or **boolean**
 * **float**