diff --git a/courses/free-courses-en.md b/courses/free-courses-en.md
index ea7d42cf9..3066b3f0c 100644
--- a/courses/free-courses-en.md
+++ b/courses/free-courses-en.md
@@ -1527,6 +1527,7 @@
 ### System Design
 
 * [System Design](https://www.youtube.com/playlist?list=PLMCXHnjXnTnvo6alSjVkgxV-VH6EPyvoX) - Gaurav Sen
+* [System Design Fundamentals](https://www.youtube.com/playlist?list=PLCRMIe5FDPsd0gVs500xeOewfySTsmEjf) - ByteByteGo
 * [System Design Primer Course](https://www.youtube.com/playlist?list=PLTCrU9sGyburBw9wNOHebv9SjlE4Elv5a) - sudoCODE