diff --git a/testcases/Makefile b/testcases/Makefile
index 010b595f..d37450ab 100644
--- a/testcases/Makefile
+++ b/testcases/Makefile
@@ -1,4 +1,4 @@
 test:
-	PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(1)" t/15*.t
+	PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(1)" t/*.t
 
 all: test