diff --git a/configure.in b/configure.in
index e53cade..847cbbc 100644
--- a/configure.in
+++ b/configure.in
@@ -117,7 +117,7 @@ case $host in
 esac
 AX_CXX_CHECK_QT([QT], [Qt5Core Qt5Gui Qt5Widgets Qt5Network])
 AC_ARG_VAR(LUPDATE_ARGS, [arguments for qt lupdate command, e.g. -no-obsolete])
-if test $HAVE_$1 -eq 1; then
+if test $HAVE_QT -eq 1; then
   CPPFLAGS+=" -DQT_NETWORK_LIB"
 fi