diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 765c1862..e65f42c9 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1100,6 +1100,8 @@ R:
   color: "#198ce7"
   lexer: S
   primary_extension: .r
+  filenames:
+  - .Rprofile
 
 RHTML:
   type: markup