diff --git a/content/Math4302/Math4303_L12.md b/content/Math4302/Math4302_L12.md
similarity index 100%
rename from content/Math4302/Math4303_L12.md
rename to content/Math4302/Math4302_L12.md
diff --git a/content/Math4302/Math4302_L13.md b/content/Math4302/Math4302_L13.md
new file mode 100644
index 0000000..e69de29
diff --git a/content/Math4302/_meta.js b/content/Math4302/_meta.js
index f2cde74..77f25a3 100644
--- a/content/Math4302/_meta.js
+++ b/content/Math4302/_meta.js
@@ -15,4 +15,5 @@ export default {
     Math4302_L10: "Modern Algebra (Lecture 10)",
     Math4302_L11: "Modern Algebra (Lecture 11)",
     Math4302_L12: "Modern Algebra (Lecture 12)",
+    Math4302_L13: "Modern Algebra (Lecture 13)",
 }