diff --git a/lectures/17.slim b/lectures/17.slim
index 3544c32..3628a48 100644
--- a/lectures/17.slim
+++ b/lectures/17.slim
@@ -12,9 +12,6 @@ section.center data-background="#000"
 section.center data-background="#F00"
   h2.white Module#prepend anyone?
 
-section.center data-background="#F00"
-  h2.white Refinements anyone?
-
 section.center data-background="#F00"
   h2.white Where do methods reside?