diff --git a/codespell_lib/data/dictionary_code.txt b/codespell_lib/data/dictionary_code.txt
index 1be6465..98879b4 100644
--- a/codespell_lib/data/dictionary_code.txt
+++ b/codespell_lib/data/dictionary_code.txt
@@ -48,5 +48,6 @@
 udate->update, date,
 udates->updates, dates,
 uint->unit
+uis->is, use,
 were'->we're
 whome->whom