diff --git a/.Rbuildignore b/.Rbuildignore
index 6880c2f..9459325 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -17,3 +17,4 @@
 ^\.Rproj\.user$
 ^README\.Rmd$
 ^README-.*\.png$
+^CRAN-RELEASE$