diff --git a/tools/build.sh b/tools/build.sh
index 735d0e13535225c13c422310d0e3ea7e8e502241..da11b89d39a111034099322c21659da8c1b3dfcc 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -46,8 +46,6 @@ OLDLISP="cmulisp -noinit"
 
 SKIPUTILS=no
 
-set -x
-
 usage ()
 {
     echo "build-l4 [-123obvuC]"