diff --git a/tools/build.sh b/tools/build.sh
index 7c25f9e..da19a04 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -63,7 +63,7 @@ chmod a+rx "$PKG.build.sh"
 
 echo "sudo -u build script -q -c \"./$PKG.build.sh\" /package/pkg/$PKG/$PKG.build.log"
 (
-	sudo -u build script -q -c "./$PKG.build.sh" /package/pkg/$PKG/$PKG.build.log
+	sudo -u build script -q -e -c "./$PKG.build.sh" /package/pkg/$PKG/$PKG.build.log
 	sudo -u build cp "$PKG.build.sh" "/package/pkg/$PKG/$PKG.build.sh"
 )