--- a/make-rules/gem.mk	Mon Feb 16 13:54:04 2015 -0800
+++ b/make-rules/gem.mk	Sun Feb 15 19:02:09 2015 -0600
@@ -18,7 +18,7 @@
 #
 # CDDL HEADER END
 #
-# Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
 #
 GEM=/usr/ruby/$(RUBY_VERSION)/bin/gem
 
@@ -59,3 +59,5 @@
 
 clean::
 	$(RM) -r $(SOURCE_DIR) $(BUILD_DIR)
+
+REQUIRED_PACKAGES += runtime/ruby