diff --git a/bin/ruby-build b/bin/ruby-build
index 7c1c1662..e82196b5 100755
--- a/bin/ruby-build
+++ b/bin/ruby-build
@@ -644,7 +644,7 @@ build_package_rbx() {
       fi
     done
 
-    RUBYOPT="-rubygems $RUBYOPT" ./configure --prefix="$PREFIX_PATH" $RUBY_CONFIGURE_OPTS "${configure_opts[@]}"
+    RUBYOPT="-rrubygems $RUBYOPT" ./configure --prefix="$PREFIX_PATH" $RUBY_CONFIGURE_OPTS "${configure_opts[@]}"
     rake install
     fix_rbx_gem_binstubs "$PREFIX_PATH"
     fix_rbx_irb "$PREFIX_PATH"
diff --git a/test/build.bats b/test/build.bats
index 9a95015b..87c116a6 100755
--- a/test/build.bats
+++ b/test/build.bats
@@ -472,7 +472,7 @@ DEF
 
   assert_build_log <<OUT
 bundle --path=vendor/bundle
-rubinius-2.0.0: --prefix=$INSTALL_ROOT RUBYOPT=-rubygems
+rubinius-2.0.0: --prefix=$INSTALL_ROOT RUBYOPT=-rrubygems
 bundle exec rake install
 OUT
 }