diff --git a/docs/MQTT-API.md b/docs/MQTT-API.md
index 194a8fe..8c25b0d 100644
--- a/docs/MQTT-API.md
+++ b/docs/MQTT-API.md
@@ -73,8 +73,8 @@ The following parameters have to be defined:
 
 ### Control
 
-* #### Ctrl/flow_start
+* #### ctrl/flow_start
   Trigger a flow start by publishing to this topic (any character, length > 0)
 
 * #### GPIO/GPIO{PinNumber}
-  Depending on device configuration (`Settings` --> `Configuration` --> Chapter `GPIO`)
\ No newline at end of file
+  Depending on device configuration (`Settings` --> `Configuration` --> Chapter `GPIO`)