diff --git a/templates/openssl.tmpl b/templates/openssl.tmpl
index c41aeb36af..29a994729e 100644
--- a/templates/openssl.tmpl
+++ b/templates/openssl.tmpl
@@ -17,6 +17,8 @@ long_desc="
  Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1)
  protocols as well as a full-strength general purpose cryptography library."
 
+# Does not build with -j.
+disable_parallel_build=yes
 build_depends="perl-5.10.0 zlib-1.2.3"
 run_depends="glibc-2.8 zlib-1.2.3"