diff --git a/configure.ac b/configure.ac
index 9f78d7ec..96495386 100644
--- a/configure.ac
+++ b/configure.ac
@@ -350,8 +350,7 @@ AM_CONDITIONAL([THEMES_INSTALL], "$THEMES_INSTALL")
 if test "x$enable_omemo_qrcode" != xno; then
     PKG_CHECK_MODULES([libqrencode], [libqrencode],
         [AC_DEFINE([HAVE_QRENCODE], [1], [Have QRencode]) LIBS="$libqrencode_LIBS $LIBS" CFLAGS="$libqrencode_CFLAGS $CFLAGS"],
-        [AC_DEFINE([HAVE_QRENCODE], [0], [Dont have QRencode])
-         AS_IF([test "x$enable_qrcode" = xyes],
+        [AS_IF([test "x$enable_qrcode" = xyes],
                [AC_MSG_ERROR([libqrencode not found])],
                [AC_MSG_NOTICE([librencode not found])])])
 fi