diff --git a/inflection.py b/inflection.py
index <HASH>..<HASH> 100644
--- a/inflection.py
+++ b/inflection.py
@@ -29,7 +29,7 @@ PLURALS = [
     (r"(?i)sis$", 'ses'),
     (r"(?i)([ti])a$", r'\1a'),
     (r"(?i)([ti])um$", r'\1a'),
-    (r"(?i)(buffal|tomat)o$", r'\1oes'),
+    (r"(?i)(buffal|potat|tomat)o$", r'\1oes'),
     (r"(?i)(bu)s$", r'\1ses'),
     (r"(?i)(alias|status)$", r'\1es'),
     (r"(?i)(octop|vir)i$", r'\1i'),
diff --git a/test_inflection.py b/test_inflection.py
index <HASH>..<HASH> 100644
--- a/test_inflection.py
+++ b/test_inflection.py
@@ -73,6 +73,7 @@ SINGULAR_TO_PLURAL = (
     ("photo", "photos"),
     ("buffalo", "buffaloes"),
     ("tomato", "tomatoes"),
+    ("potato", "potatoes"),
     ("dwarf", "dwarves"),
     ("elf", "elves"),
     ("information", "information"),
Fix pluralization of "potato"

Closes #7.