diff --git a/Formula/imap-uw.rb b/Formula/imap-uw.rb
index e77db9a26f..e89c4a3598 100644
--- a/Formula/imap-uw.rb
+++ b/Formula/imap-uw.rb
@@ -19,7 +19,7 @@ class ImapUw < Formula
   depends_on "openssl"
 
   def install
-    ENV.j1
+    ENV.deparallelize
     inreplace "Makefile" do |s|
       s.gsub! "SSLINCLUDE=/usr/include/openssl",
               "SSLINCLUDE=#{Formula["openssl"].opt_include}/openssl"