RREF with complex numbers not working properly

[AnalogJoe]

I have a singular matrix with complex numbers:

first row: [-0.3-0.6i, -0.6]
second row: [0.75, 0.3-0.6i]

if I use RREF with my Prime I get the identity matrix, which is not correct, making the same input in Matlab gives me the correct result which is [1, 0.4-0.8j; 0, 0].

Any ideas?