diff --git a/app/src/main/cpp/camera2/ndkcamera.cpp b/app/src/main/cpp/camera2/ndkcamera.cpp
index cf66811d..b48d6046 100644
--- a/app/src/main/cpp/camera2/ndkcamera.cpp
+++ b/app/src/main/cpp/camera2/ndkcamera.cpp
@@ -751,7 +751,7 @@ void NdkCamera::on_image(const unsigned char* nv21, int nv21_width, int nv21_hei
         }
         else
         {
-            co = (camera_orientation + (m_params.orientation - 1) * 90 + 360) % 360;
+            co = (camera_orientation - (m_params.orientation - 1) * 90 + 360) % 360;
         }
 
         XYLOG(XYLOG_SEVERITY_DEBUG, "Orientation=%d Facing=%d", co, camera_facing);