diff --git a/tk.spec b/tk.spec
index 710d3e1..e08ae5c 100644
--- a/tk.spec
+++ b/tk.spec
@@ -4,7 +4,7 @@
 Summary: The graphical toolkit for the Tcl scripting language
 Name: tk
 Version: %{vers}
-Release: 1%{?dist}
+Release: 2%{?dist}
 Epoch:   1
 License: TCL
 Group: Development/Languages
@@ -53,7 +53,7 @@ The package contains the development files and man pages for tk.
 %build
 cd unix
 autoconf
-%configure
+%configure --enable-threads
 make %{?_smp_mflags} CFLAGS="%{optflags}" TK_LIBRARY=%{_datadir}/%{name}%{majorver}
 
 %check
@@ -113,6 +113,9 @@ sed -i -e "s|$PWD/unix|%{_libdir}|; s|$PWD|%{_includedir}/%{name}-private|" %{bu
 %{_datadir}/%{name}%{majorver}/tkAppInit.c
 
 %changelog
+* Fri Jun 13 2014 Jaroslav Škarvada <jskarvad@redhat.com> - 1:8.6.1-2
+- Re-enabled threads (previously reported bugs are no more reproducible)
+
 * Thu Apr 24 2014 Jaroslav Škarvada <jskarvad@redhat.com> - 1:8.6.1-1
 - New version
 - Defuzzified patches