diff --git a/Library/Homebrew/utils/github/actions.rb b/Library/Homebrew/utils/github/actions.rb
index 84e447cd0c..ed27283bb3 100644
--- a/Library/Homebrew/utils/github/actions.rb
+++ b/Library/Homebrew/utils/github/actions.rb
@@ -27,7 +27,7 @@ module GitHub
       delimiter = "ghadelimiter_#{SecureRandom.uuid}"
 
       if name.include?(delimiter) || value.include?(delimiter)
-        raise Error, "`name` and `value` must not contain the delimiter"
+        raise "`name` and `value` must not contain the delimiter"
       end
 
       <<~EOS
@@ -104,9 +104,5 @@ module GitHub
         @file.descend.next.to_s != ".."
       end
     end
-
-    # Generic GitHub Actions error.
-    class Error < RuntimeError
-    end
   end
 end