diff --git a/src/lib-sieve/plugins/special-use/ext-special-use.c b/src/lib-sieve/plugins/special-use/ext-special-use.c
index 7cf92a38bb1c6bc311fdb52172d033f67b4dc517..acbb13e89f221979bcd779f518060eef6814f84f 100644
--- a/src/lib-sieve/plugins/special-use/ext-special-use.c
+++ b/src/lib-sieve/plugins/special-use/ext-special-use.c
@@ -4,9 +4,9 @@
  * ---------------------
  *
  * Authors: Stephan Bosch
- * Specification: RFC ----
- * Implementation: prototype
- * Status: development
+ * Specification: RFC 8579
+ * Implementation: full
+ * Status: testing
  *
  */