diff --git a/libsigc++20.spec b/libsigc++20.spec
index 3920cce..5ab31fe 100644
--- a/libsigc++20.spec
+++ b/libsigc++20.spec
@@ -12,6 +12,8 @@ URL:            http://libsigc.sourceforge.net/
 Source0:        http://download.gnome.org/sources/libsigc++/%{release_version}/libsigc++-%{version}.tar.xz
 
 BuildRequires:  m4
+BuildRequires:  perl
+BuildRequires:  perl(Getopt::Long)
 
 %description
 This library implements a full callback system for use in widget libraries,