diff --git a/libsigc++20.spec b/libsigc++20.spec
index 9525b2d..6ddcd9a 100644
--- a/libsigc++20.spec
+++ b/libsigc++20.spec
@@ -10,6 +10,7 @@ License:        LGPLv2+
 URL:            http://libsigc.sourceforge.net/
 Source0:        http://download.gnome.org/sources/libsigc++/%{release_version}/libsigc++-%{version}.tar.xz
 
+BuildRequires:  gcc-c++
 BuildRequires:  m4
 BuildRequires:  perl-interpreter
 BuildRequires:  perl(Getopt::Long)