diff --git a/README.md b/README.md
index c89f5ca..23881cb 100644
--- a/README.md
+++ b/README.md
@@ -675,7 +675,7 @@ _________________
 
 - [What is a eMMC? Intro, Comparing to Other Storage, and Upgrading. SSD, M.2](https://www.youtube.com/watch?v=vGatKmqYxEA)
 
-### SD Card
+#### SD Card
 
 - [Interfacing with an SD Card](https://www.youtube.com/watch?v=g40tUdjZ-Sk)