diff --git a/tests/Makefile.am b/tests/Makefile.am
index abb5d7fe95ab6403a3222e93dcc37c4c3e35e7f3..5a47ded91454443f162866028792f0868047b0df 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -56,7 +56,7 @@ MODFILES = \
 	example1_macroif.mod \
 	example1long.mod \
 	example2long.mod \
-	example2long_use_dll \
+	example2long_use_dll.mod \
 	t_sgu_ex1.mod \
 	irfs/example1_unit_std.mod \
 	optimal_policy/OSR/osr_example.mod \