diff --git a/Makefile b/Makefile
index 736991d..c082662 100644
--- a/Makefile
+++ b/Makefile
@@ -22,9 +22,11 @@ run: it
 	@ ./lambda - < ./samples/$(TEST).txt > program.out
 
 profile: it
+	@ mkdir -p profile
 	@ ./lambda -p profile/cpu.prof - < ./samples/$(TEST).txt > program.out
 
 explain: it
+	@ mkdir -p profile
 	@ ./lambda -x -p profile/cpu.prof - < ./samples/$(TEST).txt > program.out
 
 graph: