diff --git a/packages/core/src/RenderingEngine/VolumeViewport.ts b/packages/core/src/RenderingEngine/VolumeViewport.ts
index 89f1ce5f9..a16447df1 100644
--- a/packages/core/src/RenderingEngine/VolumeViewport.ts
+++ b/packages/core/src/RenderingEngine/VolumeViewport.ts
@@ -192,6 +192,7 @@ class VolumeViewport extends BaseVolumeViewport {
       this.viewportProperties.orientation = orientation;
       this.resetCamera();
     } else {
+      this.viewportProperties.orientation = undefined;
       ({ viewPlaneNormal, viewUp } = orientation);
       this.applyViewOrientation(orientation);
     }