diff --git a/docs/examples/Mag_back_1.py b/docs/examples/Mag_back_1.py
index 4a029fb0..1f3366ba 100644
--- a/docs/examples/Mag_back_1.py
+++ b/docs/examples/Mag_back_1.py
@@ -1,3 +1,4 @@
+# Add path
 import sys
 sys.path.append('../../')