diff --git a/.gitignore b/.gitignore
index 1c2d52b..e76554f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 .idea/*
+bin
diff --git a/Makefile b/Makefile
index 3664c77..53bec58 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,8 @@ CODEGENFILE="set_aggregation_opts.go"
 .PHONY: codegen
 codegen:
 	$(BINDIR)/codegen -output ./tsplot/$(CODEGENFILE)
+	go fmt ./tsplot/$(CODEGENFILE)
 
 .PHONY: codegendiff
 codegendiff:
-	diff ./tsplot/$(CODEGENFILE) <($(BINDIR)/codegen -stdout)
+	diff ./tsplot/$(CODEGENFILE) <($(BINDIR)/codegen -stdout | gofmt)