diff --git a/_subsections/lesson-02.org b/_subsections/lesson-02.org
index b6a6c66..08b3a19 100644
--- a/_subsections/lesson-02.org
+++ b/_subsections/lesson-02.org
@@ -1,6 +1,6 @@
#+title: lesson 02 | course overview + the shell
#+HTML_HEAD:
-#+HTML_HEAD:
+#+HTML_HEAD:
#+HTML_HEAD:
* Links
diff --git a/_subsections/lesson-03.org b/_subsections/lesson-03.org
index be8709f..062c8a1 100644
--- a/_subsections/lesson-03.org
+++ b/_subsections/lesson-03.org
@@ -1,6 +1,6 @@
#+title: Lesson 02 | shell tools and scripting
#+HTML_HEAD:
-#+HTML_HEAD:
+#+HTML_HEAD:
#+HTML_HEAD:
* Links
diff --git a/toc.org b/toc.org
index b1a5f5b..9c9fa40 100644
--- a/toc.org
+++ b/toc.org
@@ -1,7 +1,7 @@
#+title: Missing Semester IAP 2020
#+HTML_HEAD:
-#+HTML_HEAD:
-#+HTML_HEAD:
+#+HTML_HEAD:
+#+HTML_HEAD:
#+HTML_HEAD:
* Links