diff --git a/.gitignore b/.gitignore
index 5c6ccfc..ec0c240 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 site/
 data.md
 site.txz
+local-targets.mk
diff --git a/Makefile b/Makefile
index 1a22c6b..5de9e19 100644
--- a/Makefile
+++ b/Makefile
@@ -11,3 +11,4 @@ clean:
 	rm -rf site site.txz
 
 .PHONY: $(subdirs) clean
+-include local-targets.mk