diff --git a/Makefile b/Makefile
index c082662..edcc7e9 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ explain: it
 	@ mkdir -p profile
 	@ ./lambda -x -p profile/cpu.prof - < ./samples/$(TEST).txt > program.out
 
-graph:
+graph: profile
 	@ go tool pprof -raw -output=profile/cpu.raw profile/cpu.prof
 	@ go tool pprof -svg profile/cpu.prof > profile/cpu.svg
 	@ echo "Profile graph saved to 'file://profile/cpu.svg'"