diff --git a/src/meshlab/plugins/U3D_OSX/IDTFConverter.sh b/src/meshlab/plugins/U3D_OSX/IDTFConverter.sh
index ae55468a2..5079b2af2 100755
--- a/src/meshlab/plugins/U3D_OSX/IDTFConverter.sh
+++ b/src/meshlab/plugins/U3D_OSX/IDTFConverter.sh
@@ -2,4 +2,6 @@
 # 
 export LD_LIBRARY_PATH=$1:${LD_LIBRARY_PATH}
 export U3D_LIBDIR=$1
-$1/IDTFConverter.out $2 $3 $4 $5 $6 $7 $8 $9 ${10} ${11} ${12}
\ No newline at end of file
+$1/IDTFConverter.out $2 $3 $4 $5 $6 $7 $8 $9 ${10} "${11}" 
+
+#echo $1/IDTFConverter.out $2 $3 $4 $5 $6 $7 $8 $9 ${10} \"${11}\"> /tmp/dump.txt
\ No newline at end of file