diff --git a/kyotocabinet.spec b/kyotocabinet.spec
index d0579e1..3be3ae8 100644
--- a/kyotocabinet.spec
+++ b/kyotocabinet.spec
@@ -3,7 +3,6 @@ Name:           kyotocabinet
 Version:        1.2.76
 Release:        18%{?dist}
 License:        GPLv3
-Group:          Applications/Databases
 URL:            http://fallabs.com/%{name}/
 Source:         http://fallabs.com/%{name}/pkg/%{name}-%{version}.tar.gz
 Patch0:         kyotocabinet-1.2.76-cflags.patch
@@ -23,7 +22,6 @@ in hash table or B+ tree.
 
 %package libs
 Summary:        Libraries for applications using Kyoto Cabinet
-Group:          System Environment/Libraries
 Provides:       %{name}-lib = %{version}-%{release}
 Provides:       %{name}-lib%{?_isa} = %{version}-%{release}
 Obsoletes:      %{name}-lib < 1.2.76-3
@@ -34,7 +32,6 @@ for any Kyoto Cabinet client program or interface.
 
 %package        devel
 Summary:        Development files for Kyoto Cabinet
-Group:          Development/Libraries
 Requires:       %{name}-libs%{?_isa} = %{version}-%{release}, pkgconfig
 
 %description devel
@@ -43,7 +40,6 @@ developing applications that use Kyoto Cabinet.
 
 %package apidocs
 Summary:        API documentation for Kyoto Cabinet library
-Group:          Documentation
 BuildArch:      noarch
 Provides:       %{name}-api-doc = %{version}-%{release}
 Obsoletes:      %{name}-api-doc < 1.2.76-3