diff --git a/inst/WORDLIST b/inst/WORDLIST
index 8609f6ef..11a50072 100644
--- a/inst/WORDLIST
+++ b/inst/WORDLIST
@@ -51,6 +51,7 @@ Odeint
 Ottar
 Pannell
 Pieter
+R's
 RIVM
 RTools
 Rcpp