diff --git a/libisofs.spec b/libisofs.spec
index 1a4ce8c..8e61584 100644
--- a/libisofs.spec
+++ b/libisofs.spec
@@ -1,20 +1,20 @@
 %global pkgname libisofs
 
-Summary:	Library to create ISO 9660 disk images
-Name:		libisofs
-Version:	1.5.2
-Release:	3%{?dist}
+Summary:        Library to create ISO 9660 disk images
+Name:           libisofs
+Version:        1.5.2
+Release:        3%{?dist}
 # make_isohybrid_mbr.c is under LGPLv2+, the rest under GPLv2+
-License:	GPLv2+ and LGPLv2+
-URL:		http://libburnia-project.org/
-Source0:	http://files.libburnia-project.org/releases/%{pkgname}-%{version}.tar.gz
-Source1:	http://files.libburnia-project.org/releases/%{pkgname}-%{version}.tar.gz.sig
-Source2:	gpgkey-44BC9FD0D688EB007C4DD029E9CBDFC0ABC0A854.gpg
-Patch0:		libisofs-0.6.16-multilib.patch
-BuildRequires:	gnupg2
-BuildRequires:	gcc, libacl-devel, zlib-devel
+License:        GPLv2+ and LGPLv2+
+URL:            http://libburnia-project.org/
+Source0:        http://files.libburnia-project.org/releases/%{pkgname}-%{version}.tar.gz
+Source1:        http://files.libburnia-project.org/releases/%{pkgname}-%{version}.tar.gz.sig
+Source2:        gpgkey-44BC9FD0D688EB007C4DD029E9CBDFC0ABC0A854.gpg
+Patch0:         libisofs-0.6.16-multilib.patch
+BuildRequires:  gnupg2
+BuildRequires:  gcc, make, libacl-devel, zlib-devel
 %if 0%{?rhel} && "%{name}" != "%{pkgname}"
-BuildRequires:	autoconf, automake, libtool
+BuildRequires:  autoconf, automake, libtool
 %endif
 
 %description
@@ -27,8 +27,8 @@ ACLs and xattr in ISO-9660 filesystems as well. As it is linked with
 zlib, it supports zisofs compression, too.
 
 %package devel
-Summary:	Development files for %{name}
-Requires:	%{name}%{?_isa} = %{version}-%{release}, pkgconfig
+Summary:        Development files for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}, pkgconfig
 
 %description devel
 The %{name}-devel package contains libraries and header files for
@@ -36,9 +36,9 @@ developing applications that use %{name}.
 
 %if 0%{!?_without_doc:1}
 %package doc
-Summary:	Documentation files for %{name}
-BuildArch:	noarch
-BuildRequires:	doxygen, graphviz
+Summary:        Documentation files for %{name}
+BuildArch:      noarch
+BuildRequires:  doxygen, graphviz
 
 %description doc
 Libisofs is a library to create an ISO-9660 filesystem and supports