diff --git a/oz.spec.in b/oz.spec.in
index a978a324..9ab8286a 100644
--- a/oz.spec.in
+++ b/oz.spec.in
@@ -33,6 +33,7 @@ Requires: python3-m2crypto
 Requires: python3-monotonic
 
 BuildRequires: python3
+BuildRequires: python3-devel
 
 %description
 Oz is a set of libraries and utilities for doing automated guest OS