diff --git a/tools/traceview/etc/traceview b/tools/traceview/etc/traceview
index fc7d8c025..ca2f80524 100755
--- a/tools/traceview/etc/traceview
+++ b/tools/traceview/etc/traceview
@@ -85,7 +85,7 @@ else
 fi
 
 while expr "x$1" : 'x-J' >/dev/null; do
-    opt=`expr "$1" : '-J\(.*\)'`
+    opt=`expr "x$1" : 'x-J\(.*\)'`
     javaOpts="${javaOpts} -${opt}"
     shift
 done