diff --git a/include/keys/asymmetric-parser.h b/include/keys/asymmetric-parser.h
index c47dc5405f79..516a3f51179e 100644
--- a/include/keys/asymmetric-parser.h
+++ b/include/keys/asymmetric-parser.h
@@ -10,6 +10,8 @@
 #ifndef _KEYS_ASYMMETRIC_PARSER_H
 #define _KEYS_ASYMMETRIC_PARSER_H
 
+struct key_preparsed_payload;
+
 /*
  * Key data parser.  Called during key instantiation.
  */