diff --git a/sweet_matrix.c b/sweet_matrix.c
index b3d9db5..b3519cb 100644
--- a/sweet_matrix.c
+++ b/sweet_matrix.c
@@ -244,7 +244,7 @@ sweet_matrix_look_at (vec3 pos, vec3 dir, vec3 up)
     mat4 m;
     mat4 t;
     vec3 side;
-    side = sweet_vector_cross (up, dir);
+    side = sweet_vector_cross (dir, up);
     side = sweet_vector_normalize3 (side);
     up = sweet_vector_cross (side, dir);
     up = sweet_vector_normalize3 (up);