diff --git a/tests/Makefile.am b/tests/Makefile.am
index 65c954fec804b4978917932c7b975b40dc8aca99..e28ed34a00fff3f811fa41d48fdc47601e13493a 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -179,7 +179,7 @@ MODFILES = \
 	simul/simul_ZLB_purely_forward.mod \
 	simul/simul_ZLB_purely_forward_no_solution.mod \
 	simul/Irreversible_investment.mod \
-	simul/linear_state_space_ARMA.mod \
+	simul/linear_state_space_arma.mod \
 	conditional_forecasts/2/fs2000_est.mod \
 	conditional_forecasts/3/fs2000_conditional_forecast_initval.mod \
 	conditional_forecasts/4/fs2000_conditional_forecast_histval.mod \