diff --git a/configure.ac b/configure.ac
index ad4cffb..2ac9a58 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,7 +40,7 @@ AS_IF(
         [AC_DEFINE(PANEL_GNOME3, 1, [panel type])]
         ,
     [test "x$panel" = xmate],
-        [PKG_CHECK_MODULES(LIBPANEL, libmatepanelapplet-3.0 >= 1.4.0)]
+        [PKG_CHECK_MODULES(LIBPANEL, libmatepanelapplet-4.0 >= 1.4.0)]
         LIBPANEL_APPLET_DIR=`$PKG_CONFIG --variable=prefix libmatepanelapplet-3.0`/share/mate-panel/applets
         PLUGIN_DIR=`$PKG_CONFIG --variable=prefix libmatepanelapplet-3.0`/libexec
         [AC_DEFINE(PANEL_MATE, 1, [panel type])]