diff --git a/libraries/stdlib/genosl/mx_creatematrix.osl b/libraries/stdlib/genosl/mx_creatematrix.osl
index 820f8f7dae..f1aa27fd6f 100644
--- a/libraries/stdlib/genosl/mx_creatematrix.osl
+++ b/libraries/stdlib/genosl/mx_creatematrix.osl
@@ -1,11 +1,9 @@
-#include "matrix33.h"
-
 void mx_creatematrix_vector3_matrix33(vector in1, vector in2, vector in3, out matrix33 result)
 {
-    result = matrix33.matrix44To33(matrix(in1.x, in1.y, in1.z,  0.0,
-                                          in2.x, in2.y, in2.z,  0.0,
-                                          in3.x, in3.y, in3.z,  0.0,
-                                          0.0,   0.0,   0.0,    1.0));
+    result = matrix(in1.x, in1.y, in1.z,  0.0,
+                    in2.x, in2.y, in2.z,  0.0,
+                    in3.x, in3.y, in3.z,  0.0,
+                    0.0,   0.0,   0.0,    1.0);
 }
 
 void mx_creatematrix_vector3_matrix44(vector3 in1, vector3 in2, vector3 in3, vector3 in4, out matrix result)