diff --git a/src/3_drude_model.md b/src/3_drude_model.md
index 1db372a5973e733561e181cea7e44e2705f9e7bb..b7c7d3b90d666a7e52c714ac92b2079f6c32a22f 100644
--- a/src/3_drude_model.md
+++ b/src/3_drude_model.md
@@ -8,7 +8,6 @@ from common import draw_classic_axes, configure_plotting
 configure_plotting()
 ```
 
-# Drude theory and the free electron model
 _(based on chapter 3 of the book)_  
 
 !!! summary "Learning goals"