diff --git a/include/scmi_protocols.h b/include/scmi_protocols.h
index 519b906..9046de7 100644
--- a/include/scmi_protocols.h
+++ b/include/scmi_protocols.h
@@ -145,7 +145,7 @@
 struct scmi_base_discover_list_protocols_out {
 	s32 status;
 	u32 num_protocols;
-	u32 protocols[3];
+	u32 protocols[];
 };
 
 /**