diff --git a/markdown/chapter_1_introduction/tutorial_3_fitting.md b/markdown/chapter_1_introduction/tutorial_3_fitting.md
index c70486e..d931634 100644
--- a/markdown/chapter_1_introduction/tutorial_3_fitting.md
+++ b/markdown/chapter_1_introduction/tutorial_3_fitting.md
@@ -938,7 +938,7 @@ galaxy = ag.Galaxy(
     redshift=0.5,
     bulge=ag.lp.Sersic(
         centre=(1.0, 10),  # These are the parameters
-        ell_comps=(0.5, 0.9),  # you need to adjust
+        ell_comps=(0.5, 0.5),  # you need to adjust
         intensity=1.0,  # to try and improve
         effective_radius=1.0,  #  the model's fit
         sersic_index=1.0,  # to the data!
diff --git a/notebooks/chapter_1_introduction/tutorial_3_fitting.ipynb b/notebooks/chapter_1_introduction/tutorial_3_fitting.ipynb
index 601771a..63fd018 100644
--- a/notebooks/chapter_1_introduction/tutorial_3_fitting.ipynb
+++ b/notebooks/chapter_1_introduction/tutorial_3_fitting.ipynb
@@ -1042,7 +1042,7 @@
     "    redshift=0.5,\n",
     "    bulge=ag.lp.Sersic(\n",
     "        centre=(1.0, 10),  # These are the parameters\n",
-    "        ell_comps=(0.5, 0.9),  # you need to adjust\n",
+    "        ell_comps=(0.5, 0.5),  # you need to adjust\n",
     "        intensity=1.0,  # to try and improve\n",
     "        effective_radius=1.0,  #  the model's fit\n",
     "        sersic_index=1.0,  # to the data!\n",
diff --git a/scripts/chapter_1_introduction/tutorial_3_fitting.py b/scripts/chapter_1_introduction/tutorial_3_fitting.py
index 66e496b..61bd7b2 100644
--- a/scripts/chapter_1_introduction/tutorial_3_fitting.py
+++ b/scripts/chapter_1_introduction/tutorial_3_fitting.py
@@ -621,7 +621,7 @@
     redshift=0.5,
     bulge=ag.lp.Sersic(
         centre=(1.0, 10),  # These are the parameters
-        ell_comps=(0.5, 0.9),  # you need to adjust
+        ell_comps=(0.5, 0.5),  # you need to adjust
         intensity=1.0,  # to try and improve
         effective_radius=1.0,  #  the model's fit
         sersic_index=1.0,  # to the data!