diff --git a/tools/linux_packaging/build b/tools/linux_packaging/build
index cc55023533..ba5eda007b 100755
--- a/tools/linux_packaging/build
+++ b/tools/linux_packaging/build
@@ -273,7 +273,7 @@ versionDir=`ls ${GTKROOT}/gtk-2.0/ | grep "[0-9]*\.[0-9]*\.[0-9]*"`
 
 num=0
 for name in $versionDir ; do
-    $num=$(($num + 1))
+    num=$(($num + 1))
 done
 
 if [ $num -eq 1 ]; then
@@ -307,7 +307,7 @@ versionDir=`ls ${PANGOROOT}/pango/ | grep "[0-9]*\.[0-9]*\.[0-9]*"`
 
 num=0
 for name in $versionDir ; do
-	$num=$(($num + 1))
+	num=$(($num + 1))
 done
 
 if [ $num -eq 1 ]; then