diff --git a/tests/auto/network/socket/qtcpsocket/qtcpsocket.pro b/tests/auto/network/socket/qtcpsocket/qtcpsocket.pro
index a7b9f6126ea..cdab37bd072 100644
--- a/tests/auto/network/socket/qtcpsocket/qtcpsocket.pro
+++ b/tests/auto/network/socket/qtcpsocket/qtcpsocket.pro
@@ -4,6 +4,6 @@ TEMPLATE = subdirs
 !wince*: SUBDIRS = test stressTest
 wince*|vxworks* : SUBDIRS = test
 
-linux-*:system(". /etc/lsb-release && [ $DISTRIB_CODENAME = oneiric ]"):DEFINES+=UBUNTU_ONEIRIC
+linux-*:system(". /etc/lsb-release && [ "$DISTRIB_CODENAME" = oneiric ]"):DEFINES+=UBUNTU_ONEIRIC
 
 requires(contains(QT_CONFIG,private_tests))