diff --git a/Library/Homebrew/utils/github.rb b/Library/Homebrew/utils/github.rb
index 7fb1adce57..82eb5c4c68 100644
--- a/Library/Homebrew/utils/github.rb
+++ b/Library/Homebrew/utils/github.rb
@@ -944,7 +944,7 @@ module GitHub
       end
     rescue => e
       # Ignore SAML access errors (https://github.com/Homebrew/brew/issues/18610)
-      raise unless e.message.casecmp?("SAML")
+      raise unless e.message.include?("SAML")
     end
 
     false