diff --git a/src/testdir/Make_os2.mak b/src/testdir/Make_os2.mak
index e7ec617..acb7bd7 100644
--- a/src/testdir/Make_os2.mak
+++ b/src/testdir/Make_os2.mak
@@ -34,7 +34,8 @@
 		test76.out test77.out test78.out test79.out test80.out \
 		test81.out test82.out test83.out test84.out test88.out \
 		test89.out test90.out test91.out test92.out test93.out \
-		test94.out test95.out test96.out test98.out test99.out
+		test94.out test95.out test96.out test98.out test99.out \
+		test100.out
 
 .SUFFIXES: .in .out