diff --git a/mingw-gtkglext.spec b/mingw-gtkglext.spec
index 10dab89..71d1364 100644
--- a/mingw-gtkglext.spec
+++ b/mingw-gtkglext.spec
@@ -2,7 +2,7 @@
 
 Name:           mingw-gtkglext
 Version:        1.2.0
-Release:        9%{?dist}
+Release:        10%{?dist}
 Summary:        OpenGL Extension to GTK+
 
 License:        LGPLv2
@@ -33,6 +33,7 @@ Patch2:         gtkglext-fix-out-of-source-builds.patch
 BuildArch:      noarch
 
 BuildRequires:  autoconf
+BuildRequires:  libtool
 BuildRequires:  gtk2-devel
 
 BuildRequires:  mingw32-filesystem >= 95
@@ -164,6 +165,9 @@ rm -Rf $RPM_BUILD_ROOT/%{mingw64_datadir}/aclocal
 
 
 %changelog
+* Tue May 21 2013 Marcel Wysocki <maci@satgnu.net> - 1.2.0-10
+- add missing libtool BuildRequire
+
 * Mon May 20 2013 Marcel Wysocki <maci@satgnu.net> - 1.2.0-9
 - remove autoconf files
 - spec cleanups