State space matrix obtained form simulink model does not match the theoretical linearized state space form

I am simulating a UAV in simulink with datcom data as input, using light weight aircraft design tutorial in the documentation. I have trimmed and extracted linearized state space model for longitudinal mode. Below is the A matrix of state space form.

A = 
            Theta    U,w(1)    U,w(2)         q
 Theta          0         0         0         1
 U,w(1)      -9.8  -0.05146     0.503   -0.9097
 U,w(2)   -0.4377   -0.5939    -6.696     18.57
 q        -0.2638  -0.03186    -4.762    0.4385

when i compare (q,q) element of above A matrix with theoretically calculated A matrix for longitudinal mode, the element (q,q) should be negative for a stable aircraft. But the simulink model shows the (q,q) element is positive. Is this due to difference in moment notation or is there any explanation for this