diff --git a/pluralize.js b/pluralize.js
index 65dfcd5..38efb93 100644
--- a/pluralize.js
+++ b/pluralize.js
@@ -341,7 +341,7 @@
     [/(alias|[^aou]us|t[lm]as|gas|ris)$/i, '$1es'],
     [/(e[mn]u)s?$/i, '$1s'],
     [/([^l]ias|[aeiou]las|[ejzr]as|[iu]am)$/i, '$1'],
-    [/(alumn|syllab|vir|radi|nucle|fung|cact|stimul|termin|bacill|foc|uter|loc|strat)(?:us|i)$/i, '$1i'],
+    [/(alumn|syllab|radi|nucle|fung|cact|stimul|termin|bacill|foc|uter|loc|strat)(?:us|i)$/i, '$1i'],
     [/(alumn|alg|vertebr)(?:a|ae)$/i, '$1ae'],
     [/(seraph|cherub)(?:im)?$/i, '$1im'],
     [/(her|at|gr)o$/i, '$1oes'],
diff --git a/test.js b/test.js
index fc84d37..d703d21 100644
--- a/test.js
+++ b/test.js
@@ -194,7 +194,7 @@ var BASIC_TESTS = [
   ['die', 'dice'],
   ['penny', 'pennies'],
   ['campus', 'campuses'],
-  ['virus', 'viri'],
+  ['virus', 'viruses'],
   ['iris', 'irises'],
   ['bureau', 'bureaus'],
   ['kiwi', 'kiwis'],