diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index 0292dd2..0be46fe 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -29,7 +29,8 @@
 		test79.out test80.out test81.out test82.out test83.out \
 		test84.out test85.out test86.out test87.out test88.out \
 		test89.out test90.out test91.out test92.out test93.out \
-		test94.out test95.out test96.out test97.out test98.out
+		test94.out test95.out test96.out test97.out test98.out \
+		test99.out
 
 SCRIPTS_GUI = test16.out