diff --git a/student_download/episode_functions.py b/student_download/episode_functions.py
index 245fc172..e8112947 100644
--- a/student_download/episode_functions.py
+++ b/student_download/episode_functions.py
@@ -124,8 +124,8 @@ def plot_cmd_selection(df):
 
     plt.plot(x, y, 'ko', markersize=0.7, alpha=0.9)
 
-    plt.xlabel('$\phi_1$ [deg]')
-    plt.ylabel('$\phi_2$ [deg]')
+    plt.xlabel(r'$\phi_1$ [deg]')
+    plt.ylabel(r'$\phi_2$ [deg]')
     plt.title('Proper motion + photometry selection', fontsize='medium')
 
     plt.axis('equal')