diff --git a/data/dictionaries/en/post_office.txt b/data/dictionaries/en/post_office.txt
index f57bc023..500fd00f 100644
--- a/data/dictionaries/en/post_office.txt
+++ b/data/dictionaries/en/post_office.txt
@@ -1,8 +1,8 @@
 bag|lb|lmb|mailbag|lockedbag|mail bag|locked bag|locked mail bag
-post box|pobox|postbox|post box|po box|post office box|p o box|p office box|pb
+p.o. box|pobox|postbox|post box|po box|post office box|post box|p o box|p office box|pb
 post mail box|post mail box|pmb
 mail|m|ml
 mailservice|ms|m s|mail service
 mailcenter|mail center|mail centre|mc|m c
 rmb|road mail box|r m b|roadside mail box|roadside mailbox|rms box
-post office|po|postoffice|pst
\ No newline at end of file
+post office|po|postoffice|pst