--- ./gplugin/gplugin-manager.c.orig	2015-05-10 20:02:00.022359200 +0200
+++ ./gplugin/gplugin-manager.c	2015-05-10 20:02:12.100326200 +0200
@@ -1119,7 +1119,11 @@
 gplugin_manager_add_default_paths(void) {
 	gchar *path;
 
-	path = g_build_filename(PREFIX, LIBDIR, "gplugin", NULL);
+	gchar *dir;
+
+	dir = g_win32_get_package_installation_directory_of_module (NULL);
+	path = g_build_filename(dir, "lib", "gplugin", NULL);
+	g_free (dir);
 	gplugin_manager_prepend_path(path);
 	g_free(path);
 
@@ -1146,7 +1146,11 @@
 
 	g_return_if_fail(appname != NULL);
 
-	path = g_build_filename(prefix, LIBDIR, appname, NULL);
+	gchar *dir;
+
+	dir = g_win32_get_package_installation_directory_of_module (NULL);
+	path = g_build_filename(dir, "lib", appname, NULL);
+	g_free (dir);
 	gplugin_manager_prepend_path(path);
 	g_free(path);