diff --git a/R.gitignore b/R.gitignore
index b9003860..49037a0b 100644
--- a/R.gitignore
+++ b/R.gitignore
@@ -11,3 +11,6 @@
 # produced vignettes
 vignettes/*.html
 vignettes/*.pdf
+
+# OAuth2 token, see https://github.com/hadley/httr/releases/tag/v0.3
+.httr-oauth