diff --git a/kdelibs-4.6.80-kconfigxt-qt48.patch b/kdelibs-4.6.80-kconfigxt-qt48.patch
new file mode 100644
index 0000000..2793b19
--- /dev/null
+++ b/kdelibs-4.6.80-kconfigxt-qt48.patch
@@ -0,0 +1,33 @@
+commit d44186bce4670d2985fb6aba8dba59bbd2c4c77a
+Author: Jeremy Whiting <jpwhiting@kde.org>
+Date:   Wed Jun 1 15:49:14 2011 -0600
+
+    Fix KComboBox KConfigXT bug when kdelibs is built with qt 4.8.
+    REVIEW:101486
+
+diff --git a/kdeui/dialogs/kconfigdialogmanager.cpp b/kdeui/dialogs/kconfigdialogmanager.cpp
+index 0209f49..a0f6af2 100644
+--- a/kdeui/dialogs/kconfigdialogmanager.cpp
++++ b/kdeui/dialogs/kconfigdialogmanager.cpp
+@@ -479,9 +479,6 @@ QVariant KConfigDialogManager::property(QWidget *w) const
+ 
+     QByteArray userproperty = getCustomProperty(w);
+     if (userproperty.isEmpty()) {
+-        userproperty = getUserProperty(w);
+-    }
+-    if (userproperty.isEmpty()) {
+         QComboBox *cb = qobject_cast<QComboBox *>(w);
+         if (cb) {
+             if (cb->isEditable()) {
+@@ -490,6 +487,11 @@ QVariant KConfigDialogManager::property(QWidget *w) const
+                 return QVariant(cb->currentIndex());
+             }
+         }
++    }
++    if (userproperty.isEmpty()) {
++        userproperty = getUserProperty(w);
++    }
++    if (userproperty.isEmpty()) {
+         kWarning(d->debugArea()) << w->metaObject()->className() << " widget not handled!";
+         return QVariant();
+     }
diff --git a/kdelibs.spec b/kdelibs.spec
index 9b3cc28..82a232b 100644
--- a/kdelibs.spec
+++ b/kdelibs.spec
@@ -16,7 +16,7 @@
 
 Summary: KDE Libraries
 Version: 4.6.4
-Release: 2%{?dist}
+Release: 3%{?dist}
 
 Name: kdelibs
 Epoch: 6
@@ -99,6 +99,9 @@ Patch51: kdelibs-4.6.2-uri_mimetypes.patch
 Patch52: kdelibs-4.6.80-kstatusnotifieritem_dbus_leak.patch
 
 ## 4.6 upstream
+# https://projects.kde.org/projects/kde/kdelibs/repository/revisions/d44186bce4670d2985fb6aba8dba59bbd2c4c77a
+# fix KConfigXT KComboBox for Qt 4.8 TP1
+Patch100: kdelibs-4.6.80-kconfigxt-qt48.patch
 
 ## security fix
 # Not Upstreamed? why not ? -- Rex
@@ -286,6 +289,7 @@ sed -i -e "s|@@VERSION_RELEASE@@|%{version}-%{release}|" kio/kio/kprotocolmanage
 %patch52 -p1 -b .kstatusnotifieritem_dbus_leak
 
 # 4.6 upstream patches
+%patch100 -p1 -b .kconfigxt-qt48
 
 # security fix
 %patch200 -p1 -b .CVE-2009-2702
@@ -541,6 +545,9 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Thu Jun 16 2011 Rex Dieter <rdieter@fedoraproject.org> 4.6.4-3
+- fix KConfigXT KComboBox for Qt 4.8 TP1 (upstream patch)
+
 * Tue Jun 14 2011 Rex Dieter <rdieter@fedoraproject.org> 4.6.4-2
 - KStatusNotifierItem leaks D-Bus connections (#667787, kde#261180)