diff --git a/perl-Tk.spec b/perl-Tk.spec
index 27c2f10..cac02f4 100644
--- a/perl-Tk.spec
+++ b/perl-Tk.spec
@@ -31,6 +31,8 @@ Provides:       perl(Tk::TextReindex)
 Provides:       perl(Tk) = %{version}
 
 %{?perl_default_filter}
+# Explicity filter "useless" unversioned provides. For some reason, rpm is
+# detecting these both with and without version.
 %global __provides_exclude %{?__provides_exclude:%__provides_exclude|}perl\\(Tk\\)
 %global __provides_exclude %__provides_exclude|perl\\(Tk::Clipboard\\)$
 %global __provides_exclude %__provides_exclude|perl\\(Tk::Frame\\)$