diff --git a/lectures/26_inheritance/README.md b/lectures/26_inheritance/README.md
index d83a91a..99ba77b 100644
--- a/lectures/26_inheritance/README.md
+++ b/lectures/26_inheritance/README.md
@@ -330,3 +330,7 @@ int main() {
 	return 0;
 }
 ```
+
+## 26.15 Exercise
+
+What is the output of the following [program](virtual.cpp)?