diff --git a/R.gitignore b/R.gitignore
index fb078591..f5b98bb2 100644
--- a/R.gitignore
+++ b/R.gitignore
@@ -28,7 +28,7 @@ vignettes/*.pdf
 .httr-oauth
 
 # knitr and R markdown default cache directories
-/*_cache/
+*_cache/
 /cache/
 
 # Temporary files created by R markdown