diff --git a/ClanLib1.spec b/ClanLib1.spec
index eb80e30..564c507 100644
--- a/ClanLib1.spec
+++ b/ClanLib1.spec
@@ -18,6 +18,7 @@ Patch1:         ClanLib-1.0.0-fullscreen-viewport.patch
 Patch2:         ClanLib-1.0.0-libpng15.patch
 Patch3:         ClanLib-1.0.0-gcc6.patch
 Patch4:         ClanLib-1.0.0-NULL-not-defined.patch
+BuildRequires:  gcc-c++
 BuildRequires:  libX11-devel libXi-devel libXmu-devel libGLU-devel libICE-devel
 BuildRequires:  libXext-devel libXxf86vm-devel libXt-devel xorg-x11-proto-devel
 BuildRequires:  libvorbis-devel mikmod-devel SDL-devel SDL_gfx-devel