diff --git a/mkdocs.yml b/mkdocs.yml
index 6e5e3856fb633e4e0ae017551304a5b28f771ab8..a9112e1f68f16e2bead7e8cb1ef68f0d3782c0a8 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -31,6 +31,8 @@ nav:
     - Magnetism: 'lecture_8.md'
     - Fermi surface periodic table: 'fermi_surfaces.md'
     - Extra exercises: 'extra_exercises.md'
+  - Solutions:
+    - Lecture 1: 'solutions/1_einstein_model.md'
 
 theme:
   name: material
diff --git a/src/solutions/1_einstein_model.md b/src/solutions/1_einstein_model.md
new file mode 100644
index 0000000000000000000000000000000000000000..74ff0d2fc04aa4e0c5acd7fefff4824a94cddc98
--- /dev/null
+++ b/src/solutions/1_einstein_model.md
@@ -0,0 +1 @@
+# Solutions for lecture 1 exercises