diff --git a/.gitignore b/.gitignore
index 807ea251..cccaa763 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .Rproj.user
 .Rhistory
 .RData
+cache/*
diff --git a/options_communes.R b/options_communes.R
index c3db29cc..2beb1f13 100644
--- a/options_communes.R
+++ b/options_communes.R
@@ -11,6 +11,7 @@ knitr::opts_chunk$set(
   dev.args = list(bg = 'white'),
   dpi = 150,
   tidy = TRUE,
-  fig.path = paste0("graphs/", filename, "/")
+  fig.path = paste0("graphs/", filename, "/"),
+  cache.path = paste0("cache/", filename, "/")
 )