diff --git a/src/inputPlugins/mpc_plugin.c b/src/inputPlugins/mpc_plugin.c
index 25cb678b6..46de5b8ea 100644
--- a/src/inputPlugins/mpc_plugin.c
+++ b/src/inputPlugins/mpc_plugin.c
@@ -173,10 +173,12 @@ static int mpc_decode(OutputBuffer * cb, DecoderControl * dc,
 		closeInputStream(inStream);
 		if (!dc->stop) {
 			ERROR("Not a valid musepack stream\n");
+			return -1;
 		} else {
 			dc->state = DECODE_STATE_STOP;
 			dc->stop = 0;
 		}
+		return 0;
 	}
 
 	dc->totalTime = mpc_streaminfo_get_length(&info);