Index: src/drv_imap.c
===================================================================
--- src/drv_imap.c.orig
+++ src/drv_imap.c
@@ -1670,7 +1670,7 @@
 	int ret;
 
 	imap->boxes = 0;
-	if ((ret = imap_exec_b( ctx, 0, "LIST \"\" \"%s%%\"", ctx->prefix )) != DRV_OK)
+	if ((ret = imap_exec_b( ctx, 0, "LIST \"\" \"%s*\"", ctx->prefix )) != DRV_OK)
 		return ret;
 	*retb = imap->boxes;
 	return DRV_OK;