diff --git a/packaging/win32/install.sh b/packaging/win32/install.sh
index f243e16fd6..6d9a223371 100644
--- a/packaging/win32/install.sh
+++ b/packaging/win32/install.sh
@@ -731,7 +731,7 @@ function inst_qt4() {
 		echo "# Generated by foo bar libtool" > $OUTFILE
 		echo "dlname='../bin/${DLLNAME}'" >> $OUTFILE
 		echo "library_names='${DLLNAME}'" >> $OUTFILE
-		echo "libdir='/c/Qt/4.2.2/bin'" >> $OUTFILE
+		echo "libdir='${_QTDIR}/bin'" >> $OUTFILE
 	    done
 	qpopd
     fi