diff --git a/examples/layers/warp.py b/examples/layers/warp.py
index 4c33940..6d1e77e 100644
--- a/examples/layers/warp.py
+++ b/examples/layers/warp.py
@@ -52,5 +52,5 @@
 
     axs[i, 0].plot(tform.numpy().squeeze(), linewidth=3, color='red')
     axs[i, 1].plot(x_warped.numpy().squeeze(), linewidth=3, color='blue')
-    axs[i, 0].set_title(r'$\bf{}$ tform'.format(tform_name))
-    axs[i, 1].set_title(r'$\bf{}$ warped'.format(tform_name))
+    axs[i, 0].set_title('{} tform'.format(tform_name))
+    axs[i, 1].set_title('{} warped'.format(tform_name))