diff --git a/tutorials/terminology.md b/tutorials/terminology.md
index b4e8df5e6c..58e29b40e9 100644
--- a/tutorials/terminology.md
+++ b/tutorials/terminology.md
@@ -10,14 +10,14 @@ to developers touching the source code.
 
 * **Entity**: Every "object" in the world, such as models, links,
     collisions, visuals, lights, joints, etc.
-    An entity [is just a numeric ID](namespace gz_1_1gazebo.html#ad83694d867b0e3a9446b535b5dfd208d),
+    An entity [is just a numeric ID](namespacegz_1_1sim.html#ad83694d867b0e3a9446b535b5dfd208d),
     and may have several components attached to it. Entity IDs are assigned
     at runtime.
 
 * **Component**: Adds a certain functionality or characteristic (e.g., pose,
     name, material, etc.) to an entity.
     Gazebo comes with various
-    [components](namespace gz_1_1gazebo_1_1components.html)
+    [components](namespacegz_1_1sim_1_1components.html)
     ready to be used, such as `Pose` and `Inertial`, and downstream developers
     can also create their own by inheriting from the
     [BaseComponent](classignition_1_1gazebo_1_1components_1_1BaseComponent.html)