diff --git a/python-pykka.spec b/python-pykka.spec
index bf11017..e9ebded 100644
--- a/python-pykka.spec
+++ b/python-pykka.spec
@@ -33,6 +33,7 @@ BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module wheel}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+BuildRequires:  (python36-dataclasses if python36-base)
 BuildArch:      noarch
 Provides:       python-Pykka < %{version}-%{release}
 Obsoletes:      python-Pykka = %{version}-%{release}