diff --git a/src/dumm/mconsole.c b/src/dumm/mconsole.c
index 72d6d1b5e..2ed96d562 100644
--- a/src/dumm/mconsole.c
+++ b/src/dumm/mconsole.c
@@ -149,7 +149,7 @@ static int request(private_mconsole_t *this, void(*cb)(void*,char*,size_t),
 			{
 				if (reply.len && *reply.data)
 				{
-					DBG1("received mconsole error %d: %*.s",
+					DBG1("received mconsole error %d: %.*s",
 						 reply.err, reply.len, reply.data);
 				}
 				break;