diff --git a/tests/test_affine.scad b/tests/test_affine.scad
index 3ccd6979..15d6877a 100644
--- a/tests/test_affine.scad
+++ b/tests/test_affine.scad
@@ -216,12 +216,6 @@ test_affine3d_skew_yz();
 
 ////////////////////////////
 
-module test_affine3d_frame_map() {
-    assert(approx(affine3d_frame_map(x=[1,1,0], y=[-1,1,0]), affine3d_zrot(45)));
-}
-test_affine3d_frame_map();
-
-
 module test_apply() {
     assert(approx(apply(affine3d_xrot(90),2*UP),2*FRONT));
     assert(approx(apply(affine3d_yrot(90),2*UP),2*RIGHT));
diff --git a/tests/test_transforms.scad b/tests/test_transforms.scad
index 21f0ae4d..a7e9cb83 100644
--- a/tests/test_transforms.scad
+++ b/tests/test_transforms.scad
@@ -462,6 +462,11 @@ module test_xyzrot() {
 }
 test_xyzrot();
 
+module test_frame_map() {
+    assert(approx(frame_map(x=[1,1,0], y=[-1,1,0]), affine3d_zrot(45)));
+}
+test_frame_map();
+
 
 module test_skew() {
     m = affine3d_skew(sxy=2, sxz=3, syx=4, syz=5, szx=6, szy=7);