diff --git a/matlab/evaluate_steady_state.m b/matlab/evaluate_steady_state.m
index 33e3096bf36b2591f9d89870949dab8a97098501..ec0538dd1f029e824345d8d843e446e13eaad5c5 100644
--- a/matlab/evaluate_steady_state.m
+++ b/matlab/evaluate_steady_state.m
@@ -148,7 +148,7 @@ function [ys,params,info] = evaluate_steady_state(ys_init,M,options,oo,steadysta
 
     if options.steadystate_flag && updated_params_flag && ~isreal(params)
         info(1) = 23;
-        info(2) = sum(imag(M.params).^2);
+        info(2) = sum(imag(params).^2);
         return
     end