diff --git a/gem2rpm.yml b/gem2rpm.yml
index a81b003..8fa72e0 100644
--- a/gem2rpm.yml
+++ b/gem2rpm.yml
@@ -21,7 +21,9 @@
 # ## used by gem2rpm
 # :patches:
 #   foo.patch: -p1
-#   bar.patch: 
+#   bar.patch:
+# :post_patch:
+#   if you need to fiddle with the source dir before rebuilding the gem
 # ## used by gem2rpm
 # :sources:
 # - foo.desktop
@@ -54,7 +56,7 @@
 #   :filelist: |-
 #     /usr/bin/gem2rpm-opensuse
 # ## used by gem_packages
-# :custom:
+# :custom_pkgs:
 #   apache:
 #     :preamble: |-
 #       Requires: .....
@@ -68,13 +70,11 @@
 #     :post: |-
 #       /bin/echo foo
 #
----
 :license: BSD-2-Clause
-
 :sources:
-  - rubygem-byebug-rpmlintrc
-
+ - rubygem-byebug-rpmlintrc
 :preamble: |-
-  %if 0%{?suse_version} == 1110
-  %define rb_build_versions ruby21
-  %endif
+    %if 0%{?suse_version} && 0%{?suse_version} < 1330
+    %define rb_build_versions ruby22 ruby23 ruby24
+    %define rb_default_ruby_abi ruby:2.2.0 ruby:2.3.0 ruby:2.4.0
+    %endif
diff --git a/rubygem-byebug.changes b/rubygem-byebug.changes
index 79e631e..0292763 100644
--- a/rubygem-byebug.changes
+++ b/rubygem-byebug.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Sep  4 10:12:51 UTC 2017 - mrueckert@suse.de
+
+- only build on 2.2 and newer
+
 -------------------------------------------------------------------
 Sun Sep  3 08:57:33 UTC 2017 - coolo@suse.com
 
diff --git a/rubygem-byebug.spec b/rubygem-byebug.spec
index 3b8d9a7..de3bdf5 100644
--- a/rubygem-byebug.spec
+++ b/rubygem-byebug.spec
@@ -29,17 +29,18 @@ Release:        0
 %define mod_name byebug
 %define mod_full_name %{mod_name}-%{version}
 # MANUAL
-%if 0%{?suse_version} == 1110
-%define rb_build_versions ruby21
+%if 0%{?suse_version} && 0%{?suse_version} < 1330
+%define rb_build_versions ruby22 ruby23 ruby24
+%define rb_default_ruby_abi ruby:2.2.0 ruby:2.3.0 ruby:2.4.0
 %endif
 # /MANUAL
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
+BuildRequires:  ruby-macros >= 5
 BuildRequires:  %{rubydevel >= 2.2.0}
 BuildRequires:  %{rubygem gem2rpm}
-BuildRequires:  ruby-macros >= 5
 BuildRequires:  update-alternatives
 Url:            http://github.com/deivid-rodriguez/byebug
-Source:         http://rubygems.org/gems/%{mod_full_name}.gem
+Source:         https://rubygems.org/gems/%{mod_full_name}.gem
 Source1:        rubygem-byebug-rpmlintrc
 Source2:        gem2rpm.yml
 Summary:        Ruby fast debugger - base + CLI