diff --git a/src/plugins/plugins.pro b/src/plugins/plugins.pro
index d8af76f04..96efd382b 100644
--- a/src/plugins/plugins.pro
+++ b/src/plugins/plugins.pro
@@ -1,5 +1,7 @@
 TEMPLATE = subdirs
 
+include(../defines.pri)
+
 defineTest(addSubdir) {
     for(subdir, 1) {
         entries = $$files($$subdir/*)
@@ -24,10 +26,10 @@ outOfDirPlugins = $$(QUPZILLA_PLUGINS_SRCDIR)
 !CONFIG(debug, debug|release): SUBDIRS -= $$PWD/TestPlugin
 
 # KWalletPasswords only with KDE_INTEGRATION
-!contains(DEFINES, "KDE_INTEGRATION"): SUBDIRS -= $$PWD/KWalletPasswords
+!contains(DEFINES, KDE_INTEGRATION): SUBDIRS -= $$PWD/KWalletPasswords
 
 # GnomeKeyringPasswords only with GNOME_INTEGRATION
-!contains(DEFINES, "GNOME_INTEGRATION"): SUBDIRS -= $$PWD/GnomeKeyringPasswords
+!contains(DEFINES, GNOME_INTEGRATION): SUBDIRS -= $$PWD/GnomeKeyringPasswords
 !system(pkg-config --exists gnome-keyring-1): SUBDIRS -= $$PWD/GnomeKeyringPasswords
 
 win32 {