diff --git a/test/sharness/Makefile b/test/sharness/Makefile
index 88bcc0a4f..a96c5ea3f 100644
--- a/test/sharness/Makefile
+++ b/test/sharness/Makefile
@@ -1,7 +1,10 @@
-SH := $(wildcard *.sh)
+# default target is to run all tests
+all: aggregate
+
+SH := $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)
 
 .DEFAULT $(SH): ALWAYS
 	$(MAKE) -C ../.. test/sharness/$@
 
-ALWAYS: 
+ALWAYS:
 .PHONY: ALWAYS