diff --git a/Box2D.spec b/Box2D.spec
index d14d5c3..54d1e5f 100644
--- a/Box2D.spec
+++ b/Box2D.spec
@@ -13,6 +13,8 @@ URL: http://box2d.org/
 # tar --exclude .svn -czf Box2D-2.3.1.tar.gz Box2D-2.3.1
 Source0: %{name}-%{version}.tar.gz
 Patch0: Box2D-2.3.1-cmake.patch
+BuildRequires:  gcc
+BuildRequires:  gcc-c++
 BuildRequires: cmake libXi-devel glew-devel glfw-devel
 
 %package devel