diff --git a/matlab/compute_trend_coefficients.m b/matlab/compute_trend_coefficients.m
index 48f08bbaf377096a6aa7ce0747ca82fc25e8aa00..2dbed2ae2e1e183f2f39878966ef16b25d993485 100644
--- a/matlab/compute_trend_coefficients.m
+++ b/matlab/compute_trend_coefficients.m
@@ -1,5 +1,5 @@
 function [trend_addition, trend_coeff]=compute_trend_coefficients(M_,DynareOptions,nvarobs,ntobs)
-% [trend_addition, trend_coeff]=compute_trend_coefficients(DynareOptions,nvarobs,ntobs)
+% [trend_addition, trend_coeff]=compute_trend_coefficients(M_,DynareOptions,nvarobs,ntobs)
 % Computes the trend coefficiencts and the trend, accounting for
 % prefiltering
 %