diff --git a/Library/Homebrew/extend/os/linux/api/analytics.rb b/Library/Homebrew/extend/os/linux/api/analytics.rb
index 5d486078e5..7f89d52eab 100644
--- a/Library/Homebrew/extend/os/linux/api/analytics.rb
+++ b/Library/Homebrew/extend/os/linux/api/analytics.rb
@@ -5,7 +5,6 @@ module Homebrew
   module API
     module Analytics
       class << self
-        sig { returns(String) }
         def analytics_api_path
           return generic_analytics_api_path if Homebrew::EnvConfig.force_homebrew_on_linux?
 
diff --git a/Library/Homebrew/extend/os/linux/api/bottle.rb b/Library/Homebrew/extend/os/linux/api/bottle.rb
index 6ac1ea34b1..43336dbde8 100644
--- a/Library/Homebrew/extend/os/linux/api/bottle.rb
+++ b/Library/Homebrew/extend/os/linux/api/bottle.rb
@@ -5,7 +5,6 @@ module Homebrew
   module API
     module Bottle
       class << self
-        sig { returns(String) }
         def bottle_api_path
           return generic_bottle_api_path if Homebrew::EnvConfig.force_homebrew_on_linux?
 
diff --git a/Library/Homebrew/extend/os/linux/api/formula.rb b/Library/Homebrew/extend/os/linux/api/formula.rb
index 1ca27b5e66..80818c823e 100644
--- a/Library/Homebrew/extend/os/linux/api/formula.rb
+++ b/Library/Homebrew/extend/os/linux/api/formula.rb
@@ -5,7 +5,6 @@ module Homebrew
   module API
     module Formula
       class << self
-        sig { returns(String) }
         def formula_api_path
           return generic_formula_api_path if Homebrew::EnvConfig.force_homebrew_on_linux?