diff --git a/book/chapter-06-gbapp-reference.md b/book/chapter-06-gbapp-reference.md
index e6fc5727..54d6f145 100644
--- a/book/chapter-06-gbapp-reference.md
+++ b/book/chapter-06-gbapp-reference.md
@@ -134,7 +134,7 @@ A fork or branch it happens when a developer (or a group of developers) starts a
 
 The term is particularly used in free or open source software, when a division occurs because of different goals or personality fights. Some see bifurcations as a weakness in free software, but others believe that they demonstrate the adaptability of the model.
 
-##Juno API
+## #Juno API
 
 juno is a financial control and management api, with which it is possible to generate payment slips and transactions with credit and debit cards for example.
 it is assigned to the GeneralBots source code.