diff --git a/test/operatortest.jl b/test/operatortest.jl
index 7a38ead..3cbe30a 100644
--- a/test/operatortest.jl
+++ b/test/operatortest.jl
@@ -28,4 +28,4 @@ coherentstate = displaceop(20,1)*statevec(1,FiniteBasis(20))
 ############################
 
 @assert squeezingop(2,1.0)== QuArray(eye(2))
-@assert squeezingop(lowerop(2), QuArray(eye(2)), 2.0)' == displaceop(2,1)
+@assert coeffs(squeezingop(lowerop(2), QuArray(eye(2)), 2.0)') == coeffs(displaceop(2,1))