diff --git a/rubygem-abstract_method.spec b/rubygem-abstract_method.spec
index 873fcc3..6b0aa75 100644
--- a/rubygem-abstract_method.spec
+++ b/rubygem-abstract_method.spec
@@ -8,6 +8,7 @@ Release:        0
 BuildRequires:  ruby-macros >= 5
 BuildRequires:  ruby
 BuildRequires:  rubygem-gem2rpm
+BuildRequires:       rubygems-devel rubygem(rspec) >= 3 rubygem(did_you_mean)
 Url:            https://github.com/openSUSE/abstract_method
 Source:         http://rubygems.org/gems/%{mod_full_name}.gem
 Summary:        Tiny library enabling you to define abstract methods in Ruby classes