diff --git a/libchardet.spec b/libchardet.spec
index ae37075..0f45ddb 100644
--- a/libchardet.spec
+++ b/libchardet.spec
@@ -23,7 +23,7 @@ Version:        1.0.4
 Release:        0
 Summary:        Mozilla Universal Chardet library
 License:        MPL-1.1
-Group:          System/Libraries
+Group:          Development/Libraries/C and C++
 Url:            http://mirror.oops.org/pub/oops/libchardet
 Source:         http://mirror.oops.org/pub/oops/%{name}/%{name}-%{version}.tar.bz2
 Source1:        baselibs.conf
@@ -38,7 +38,7 @@ Mozilla's Universal Charset Detector C/C++ API.
 
 %package -n %{lname}
 Summary:        Mozilla Universal Chardet library
-Group:          Development/Libraries/C and C++
+Group:          System/Libraries
 
 %description -n %{lname}
 Mozilla's Universal Charset Detector C/C++ API.
@@ -55,7 +55,7 @@ application which will use libchardet.
 
 %prep
 %setup -q
-sed -i 's/^\(AM_MAINTAINER\)/AM_PROG_AR\n\1/' configure.ac
+sed -i 's/^\(AM_MAINTAINER\)/m4_ifdef([AM_PROG_AR], [AM_PROG_AR])\n\1/' configure.ac
 sed -i '/^dist_doc/d' Makefile.am
 
 %build