diff --git a/Library/Homebrew/livecheck.rb b/Library/Homebrew/livecheck.rb
index 86364ec08c..761ac38b7b 100644
--- a/Library/Homebrew/livecheck.rb
+++ b/Library/Homebrew/livecheck.rb
@@ -141,7 +141,7 @@ class Livecheck
   sig {
     params(
       # Throttle rate of version patch number to use for bumpable versions.
-      rate: T.nilable(Integer),
+      rate: Integer,
     ).returns(T.nilable(Integer))
   }
   def throttle(rate = T.unsafe(nil))