diff --git a/Makefile b/Makefile
index 8d04f43..3dcbc35 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 NON_DIRS=results/
-DIRS=$(patsubst %/,%/,$(sort $(dir $(filter-out $(NON_DIRS),$(wildcard */)))))
+DIRS=$(patsubst %/,%/,$(sort $(dir $(filter-out $(NON_DIRS),$(wildcard taskset*/)))))
 MAKE=make
 
 .PHONY: all clean $(DIRS) run