diff --git a/.Rbuildignore b/.Rbuildignore
index 8b940db..bd00737 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -10,3 +10,4 @@ README.Rmd
 README_cache*
 inst/rmd/imgs*
 inst/funding_applications/*
+CONTRIBUTING.md