diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index d828e198a5..2bb9c488fe 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -339,7 +339,7 @@ class CurlDownloadStrategy < AbstractFileDownloadStrategy
       end
     end
 
-    filenames = lines.map { |line| line[/^Content\-Disposition:\s*attachment;\s*filename=(["']?)(.+)\1$/i, 2] }
+    filenames = lines.map { |line| line[/^Content\-Disposition:\s*attachment;\s*filename=(["']?)([^;]+)\1/i, 2] }
                      .compact
 
     basename = filenames.last || parse_basename(redirect_url)