diff --git a/packages/MATLAB/mr/RotInv.m b/packages/MATLAB/mr/RotInv.m
index 794d9d9..9e07a66 100644
--- a/packages/MATLAB/mr/RotInv.m
+++ b/packages/MATLAB/mr/RotInv.m
@@ -14,5 +14,5 @@ function invR = RotInv(R)
 %     0     0     1
 %     1     0     0
 
-invR = R';
-end
\ No newline at end of file
+invR = transpose(R);
+end