diff --git a/Packages/Intersections_3/test/Intersections_3/cgal_test b/Packages/Intersections_3/test/Intersections_3/cgal_test
index 32ae3a3e612..775ddf90929 100755
--- a/Packages/Intersections_3/test/Intersections_3/cgal_test
+++ b/Packages/Intersections_3/test/Intersections_3/cgal_test
@@ -11,7 +11,7 @@ one_run()
     then
 	if [ -r ${goodresult} ]
 	then
-	    if diff output ${goodresult} > diffoutput
+	    if diff -b output ${goodresult} > diffoutput
 	    then
 		succes=ja
 	    else