diff --git a/concepts/structs/about.md b/concepts/structs/about.md
index 70ecfe2205..fb97d8ea6e 100644
--- a/concepts/structs/about.md
+++ b/concepts/structs/about.md
@@ -31,7 +31,7 @@ plane = %Plane{}
   plane.engine
   # => nil
   Map.fetch(plane, :wings)
-  # => 2
+  # => {:ok, 2}
   ```
 
 - Update field values
diff --git a/concepts/structs/introduction.md b/concepts/structs/introduction.md
index 7392839985..0c74822fd2 100644
--- a/concepts/structs/introduction.md
+++ b/concepts/structs/introduction.md
@@ -22,7 +22,7 @@ Since structs are built on maps, we can use most map functions to get and manipu
   plane.engine
   # => nil
   Map.fetch(plane, :wings)
-  # => 2
+  # => {:ok, 2}
   ```
 
 - update field values
diff --git a/exercises/concept/remote-control-car/.docs/introduction.md b/exercises/concept/remote-control-car/.docs/introduction.md
index 77d5901a02..046e99a1bf 100644
--- a/exercises/concept/remote-control-car/.docs/introduction.md
+++ b/exercises/concept/remote-control-car/.docs/introduction.md
@@ -24,7 +24,7 @@ Since structs are built on maps, we can use most map functions to get and manipu
   plane.engine
   # => nil
   Map.fetch(plane, :wings)
-  # => 2
+  # => {:ok, 2}
   ```
 
 - update field values