diff --git a/tests/Makefile.am b/tests/Makefile.am
index a532dfd016d689b24c5f9365e74ac789f2b3389b..81251b5554f1904537c1956492e5ae5d27c0945f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -190,6 +190,8 @@ clean-local:
 	rm -f $(patsubst %.mod, %.m, $(MODFILES)) \
 		$(patsubst %.mod, %_static.*, $(MODFILES)) \
 		$(patsubst %.mod, %_objective_static.m, $(MODFILES)) \
+		$(patsubst %.mod, %_set_auxiliary_variables.m, $(MODFILES)) \
+		$(patsubst %.mod, %_steadystate2.m, $(MODFILES)) \
 		$(patsubst %.mod, %_dynamic.*, $(MODFILES))
 
 	rm -f $(patsubst %.mod, %_results.mat, $(MODFILES)) \