diff --git a/build-emacs-for-macos b/build-emacs-for-macos
index d2844d9..e4536e7 100755
--- a/build-emacs-for-macos
+++ b/build-emacs-for-macos
@@ -29,7 +29,6 @@ class Build
 
     tarball = download_tarball(meta[:sha])
     source = extract_tarball(tarball, patches(options))
-    patches(options).each { |patch| apply_patch(patch, source) }
     app = compile_source(source)
 
     LibEmbedder.new(app, brew_dir, os.version, extra_libs).embed
@@ -98,6 +97,8 @@ class Build
     result = run_cmd('tar', '-xzf', filename, '-C', source_dir)
     raise 'ERROR: Tarball extraction failed.' unless result
 
+    patches.each { |patch| apply_patch(patch, target) }
+
     target
   end