diff --git a/src/faceall.ts b/src/faceall.ts
index 0007c97b..424457c8 100644
--- a/src/faceall.ts
+++ b/src/faceall.ts
@@ -48,16 +48,16 @@ const calculateFaceAngle = (face, image_size): { pitch: number, yaw: number, row
     if (r10 < 1) {
       if (r10 > -1) {
         thetaZ = Math.asin(r10);
-        thetaY = Math.atan2(-r20, r00);
+        // thetaY = Math.atan2(-r20, r00);
         thetaX = Math.atan2(-r12, r11);
       } else {
         thetaZ = -pi / 2;
-        thetaY = -Math.atan2(r21, r22);
+        // thetaY = -Math.atan2(r21, r22);
         thetaX = 0;
       }
     } else {
       thetaZ = pi / 2;
-      thetaY = Math.atan2(r21, r22);
+      // thetaY = Math.atan2(r21, r22);
       thetaX = 0;
     }