diff --git a/liborcus.spec b/liborcus.spec
index 7e216de..6129367 100644
--- a/liborcus.spec
+++ b/liborcus.spec
@@ -5,7 +5,6 @@ Version: 0.7.0
 Release: 3%{?dist}
 Summary: Standalone file import filter library for spreadsheet documents
 
-Group: System Environment/Libraries
 License: MPLv2.0
 URL: http://gitorious.org/orcus
 Source: http://kohei.us/files/orcus/src/%{name}-%{version}.tar.bz2
@@ -24,7 +23,6 @@ filters.
 
 %package model
 Summary: Spreadsheet model for %{name} conversion tools
-Group: Development/Libraries
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description model
@@ -33,7 +31,6 @@ conversion tools.
 
 %package devel
 Summary: Development files for %{name}
-Group: Development/Libraries
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description devel
@@ -42,7 +39,6 @@ developing applications that use %{name}.
 
 %package tools
 Summary: Tools for working with %{name}
-Group: Applications/Publishing
 Requires: %{name}%{?_isa} = %{version}-%{release}
 
 %description tools