diff --git a/lib/imap.c b/lib/imap.c
index dcc6d6b6e3..770b90dc79 100644
--- a/lib/imap.c
+++ b/lib/imap.c
@@ -468,6 +468,8 @@ static void state(struct connectdata *conn, imapstate newstate)
     "SELECT",
     "FETCH",
     "FETCH_FINAL",
+    "APPEND",
+    "APPEND_FINAL",
     "LOGOUT",
     /* LAST */
   };
diff --git a/lib/imap.h b/lib/imap.h
index af12130bd6..c124703bb4 100644
--- a/lib/imap.h
+++ b/lib/imap.h
@@ -48,6 +48,8 @@ typedef enum {
   IMAP_SELECT,
   IMAP_FETCH,
   IMAP_FETCH_FINAL,
+  IMAP_APPEND,
+  IMAP_APPEND_FINAL,
   IMAP_LOGOUT,
   IMAP_LAST          /* never used */
 } imapstate;