diff --git a/weechat.spec b/weechat.spec
index 6615deb..4da2793 100644
--- a/weechat.spec
+++ b/weechat.spec
@@ -26,6 +26,7 @@ BuildRequires:	lua-devel
 %if 0%{suse_version} >= 1000
 BuildRequires:	ruby-devel
 %endif
+BuildRequires:  tcl-devel
 BuildRequires:	lzo lzo-devel libgpg-error libgcrypt
 BuildRequires:	libgpg-error-devel libgcrypt-devel
 BuildRequires:	autoconf automake libtool pkgconfig