diff --git a/src/teaching/cse-562/2019sp/index.erb b/src/teaching/cse-562/2019sp/index.erb
index 9872d2cf..c4946820 100644
--- a/src/teaching/cse-562/2019sp/index.erb
+++ b/src/teaching/cse-562/2019sp/index.erb
@@ -183,7 +183,7 @@ schedule:
     due: "Homework 8"
     topic: "Provenance / Datalog"
     materials:
-      slides: "provenance/2019-04-24-Provenance.html"
+      slides: "slide/2019-04-24-Provenance.html"
   - date: "Apr 26"
     topic: "Provenance Semirings"
     textbook: "Ch. 23.4"