diff --git a/configure.in b/configure.in
index ef32643..684b503 100644
--- a/configure.in
+++ b/configure.in
@@ -123,14 +123,14 @@ if test x"$QT_INSTALL_PLUGINS" = x ; then
    QT_SEARCH="/usr/share/qt4 /usr/lib/qt /usr/X11R6 /usr/local/Trolltech/Qt-4.0.0 /usr/local/Trolltech/Qt-4.0.1 /usr/local/Trolltech/Qt-4.1.0 /usr/local/Trolltech/Qt-4.2.0 /usr/local/Trolltech/Qt-4.2.1 /usr/local/Trolltech/Qt-4.2.2"
    for p in ${QT_SEARCH}; do
        if test -d ${p}/plugins/designer; then
-          QT_INSTALL_PLUGINS=${d}/plugins/designer
+          QT_INSTALL_PLUGINS=${p}/plugins/designer
           break
        fi
    done
    if test x"$QT_INSTALL_PLUGINS" = x ; then
       for p in ${QT_SEARCH}; do
           if test -d ${p}/plugins; then
-              QT_INSTALL_PLUGINS=${d}/plugins/designer
+              QT_INSTALL_PLUGINS=${p}/plugins/designer
               break
           fi
       done