diff --git a/poky/meta/recipes-devtools/ruby/ruby.inc b/poky/meta/recipes-devtools/ruby/ruby.inc
index eaf5d13..1ecd087 100644
--- a/poky/meta/recipes-devtools/ruby/ruby.inc
+++ b/poky/meta/recipes-devtools/ruby/ruby.inc
@@ -14,7 +14,7 @@
     file://LEGAL;md5=23a79bb4c1a40f6cc9bcb6f4e7c39799 \
 "
 
-DEPENDS = "ruby-native zlib openssl tcl libyaml gdbm readline"
+DEPENDS = "ruby-native zlib openssl tcl libyaml gdbm readline libffi"
 DEPENDS_class-native = "openssl-native libyaml-native readline-native"
 
 SHRT_VER = "${@oe.utils.trim_version("${PV}", 2)}"
@@ -24,7 +24,7 @@
            "
 UPSTREAM_CHECK_URI = "https://www.ruby-lang.org/en/downloads/"
 
-inherit autotools
+inherit autotools ptest
 
 
 # This snippet lets compiled extensions which rely on external libraries,