diff --git a/_src/_guides/key-concepts-of-bigchaindb.md b/_src/_guides/key-concepts-of-bigchaindb.md
index cf74ccf..f93b01c 100644
--- a/_src/_guides/key-concepts-of-bigchaindb.md
+++ b/_src/_guides/key-concepts-of-bigchaindb.md
@@ -2,8 +2,7 @@
 layout: guide
 
 title: Key concepts of BigchainDB
-tagline: Get familiar with our transaction model 
-Assets, Inputs, Outputs, and Transactions
+tagline: "Get familiar with our transaction model (Assets, Inputs, Outputs, and Transactions)"
 order: 1
 
 learn: >