diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index 0b706bf72..c09557b58 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -159,7 +159,7 @@
Transformations: Scaling
Contact Us
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index 078d3f04c..5fecce4a1 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -171,7 +171,7 @@ Rasterization : Line