diff --git a/README.md b/README.md
index dfec222..a300149 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Data description:
 
 1. Mixed CPPs.
    
-  Contains CPPs with natural or modified amino acids.
+    Contains CPPs with natural or modified amino acids.
 
        1.1. POSEIDON