diff --git a/README.md b/README.md
index 9725d14..c5d9917 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ See `docs/harness` for wire harness diagrams.
 ![Diagram of the elevation rotator harness.](img/harness-rotator-el.png)
 *Diagram of the elevation rotator harness.*
 
-![Diagram of the azimuth controller harness.](img/harness-contoller-az.png)
+![Diagram of the azimuth controller harness.](img/harness-controller-az.png)
 *Diagram of the azimuth controller harness.*