diff -ur dovecot-antispam-2.0/antispam-plugin.h dovecot-antispam-2.0-2.2/antispam-plugin.h
--- dovecot-antispam-2.0/antispam-plugin.h	2013-07-16 08:49:17.445971507 +0200
+++ dovecot-antispam-2.0-2.2/antispam-plugin.h	2013-07-16 08:47:54.968547139 +0200
@@ -287,6 +287,25 @@
 {
 	return dict_init(uri, DICT_DATA_TYPE_STRING, username, NULL);
 }
+#elif DOVECOT_IS_EQ(2, 2)
+#define mempool_unref		pool_unref
+#define module_arg		struct module *
+#define ME(err)			MAIL_ERROR_ ##err,
+
+static inline const char *const *
+get_mail_headers(struct mail *mail, const char *hdr)
+{
+	const char *const *ret;
+	if (mail_get_headers(mail, hdr, &ret))
+		return NULL;
+	return ret;
+}
+
+static inline struct ostream *
+o_stream_create_from_fd(int fd, pool_t pool ATTR_UNUSED)
+{
+	return o_stream_create_fd(fd, 0, TRUE);
+}
 #else
 #error "Building against this dovecot version is not supported"
 #endif
diff -ur dovecot-antispam-2.0/dovecot-version.c dovecot-antispam-2.0-2.2/dovecot-version.c
--- dovecot-antispam-2.0/dovecot-version.c	2013-07-16 08:49:17.445971507 +0200
+++ dovecot-antispam-2.0-2.2/dovecot-version.c	2013-07-16 08:48:53.755753877 +0200
@@ -55,7 +55,7 @@
 		"DOVECOT_VCODE <= DOVECOT_VERSION_CODE(maj, min, 0)\n");
 
 	/* Use the antispam-storage-2.0.c for dovecot 2.1 as well */
-	if (maj == 2 && min == 1)
+	if (maj == 2 && (min == 1 || min == 2))
 		min = 0;
 
 	printf("#define ANTISPAM_STORAGE			"
--- dovecot-antispam-2.0/antispam-plugin.c~	2011-11-07 10:49:47.000000000 +0100
+++ dovecot-antispam-2.0/antispam-plugin.c	2013-07-23 20:19:25.951626755 +0200
@@ -392,4 +392,8 @@
 }
 
 /* put dovecot version we built against into plugin for checking */
+#ifdef DOVECOT_ABI_VERSION
+const char *PLUGIN_FUNCTION(version) = DOVECOT_ABI_VERSION;
+#else
 const char *PLUGIN_FUNCTION(version) = PACKAGE_VERSION;
+#endif