diff --git a/src/__private__/__angy_angz.scad b/src/__private__/__angy_angz.scad
index 9f3faf4a..cbc605bf 100644
--- a/src/__private__/__angy_angz.scad
+++ b/src/__private__/__angy_angz.scad
@@ -3,6 +3,6 @@ function __angy_angz(p1, p2) =
         dx = p2[0] - p1[0],
         dy = p2[1] - p1[1],
         dz = p2[2] - p1[2],
-        za = atan2(dy, dx),
-        ya = atan2(dz, sqrt(pow(dx, 2) + pow(dy, 2)))
+        ya = atan2(dz, sqrt(pow(dx, 2) + pow(dy, 2))),
+        za = atan2(dy, dx)
     ) [ya, za];
\ No newline at end of file