diff --git a/rubygem-gem2rpm.changes b/rubygem-gem2rpm.changes
index 4331ca8..e11bb3d 100644
--- a/rubygem-gem2rpm.changes
+++ b/rubygem-gem2rpm.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Wed Jan 29 08:48:40 UTC 2025 - Marcus Rueckert <mrueckert@suse.de>
+
+- add new gem2rpm.yml setting to have the runtime deps as
+  buildrequires:
+
+  :runtime_deps_as_buildrequires: true
+
+  disabled by default
+
+  implements https://github.com/openSUSE/gem2rpm/issues/20
+
 -------------------------------------------------------------------
 Fri Dec 27 04:49:23 UTC 2024 - Marcus Rueckert <mrueckert@suse.de>
 
diff --git a/rubygem-gem2rpm.spec b/rubygem-gem2rpm.spec
index 443c09f..17e880f 100644
--- a/rubygem-gem2rpm.spec
+++ b/rubygem-gem2rpm.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package rubygem-gem2rpm
 #
-# Copyright (c) 2024 SUSE LLC
+# Copyright (c) 2025 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
diff --git a/suse.patch b/suse.patch
index 67d4e58..14d5fc5 100644
--- a/suse.patch
+++ b/suse.patch
@@ -103,10 +103,10 @@ index 736a645..a794436 100755
      end
 diff --git a/gem2rpm.yml.documentation b/gem2rpm.yml.documentation
 new file mode 100644
-index 0000000..2d4adf0
+index 0000000..ba7bc0f
 --- /dev/null
 +++ b/gem2rpm.yml.documentation
-@@ -0,0 +1,76 @@
+@@ -0,0 +1,81 @@
 +# ---
 +# ## used by gem2rpm
 +# :summary: this is a custom summary
@@ -130,6 +130,11 @@ index 0000000..2d4adf0
 +#   BuildRequires: foobar
 +#   Requires: foobar
 +# ## used by gem2rpm
++# ## adds runtime deps of the gem as buildrequires to check if the package is installable
++# ## only use this with leaf packages, if you enable it for everything it will slow down building
++# ## as not as many packages can be be build in parallel
++# :runtime_deps_as_buildrequires: true
++# ## used by gem2rpm
 +# :patches:
 +#   foo.patch: -p1
 +#   bar.patch:
@@ -578,7 +583,7 @@ index 0000000..10b1d70
 +   end
 +-%>
 diff --git a/templates/opensuse.spec.erb b/templates/opensuse.spec.erb
-index 37de592..eb7e84c 100644
+index 37de592..dba198a 100644
 --- a/templates/opensuse.spec.erb
 +++ b/templates/opensuse.spec.erb
 @@ -1,7 +1,12 @@
@@ -660,7 +665,7 @@ index 37de592..eb7e84c 100644
 +<%   end -%>
 +<% end -%>
 +<% for d in spec.runtime_dependencies -%>
-+<% if ['rdoc'].include? d.name.to_s -%>
++<% if ['rdoc'].include?(d.name.to_s) or config[:runtime_deps_as_buildrequires] -%>
 +# <%= d.name %> <%= d.__getobj__().requirement %>
  <% for req in d.requirement -%>
 -BuildRequires:  rubygem-<%= d.name %> <%= req %>