diff --git a/MQTTSNPacket/src/MQTTSNConnectClient.c b/MQTTSNPacket/src/MQTTSNConnectClient.c
index 2db7817..e8a6d93 100644
--- a/MQTTSNPacket/src/MQTTSNConnectClient.c
+++ b/MQTTSNPacket/src/MQTTSNConnectClient.c
@@ -202,7 +202,7 @@ int MQTTSNDeserialize_pingresp(unsigned char* buf, int buflen)
 	FUNC_ENTRY;
 	curdata += MQTTSNPacket_decode(curdata, buflen, &mylen); /* read length */
 	enddata = buf + mylen;
-	if (enddata - curdata < 2)
+	if (enddata - curdata < 1)
 		goto exit;
 
 	if (readChar(&curdata) != MQTTSN_PINGRESP)
@@ -475,5 +475,3 @@ exit:
 	FUNC_EXIT_RC(rc);
 	return rc;
 }
-
-
diff --git a/MQTTSNPacket/test/test1.c b/MQTTSNPacket/test/test1.c
index 42fa445..2f24606 100644
--- a/MQTTSNPacket/test/test1.c
+++ b/MQTTSNPacket/test/test1.c
@@ -378,7 +378,7 @@ int test1(struct Options options)
 	assert("good rc from deserialize disconnect", rc == 1, "rc was %d\n", rc);
 
 	/* data after should be the same as data before */
-	assert("durations should be the same", 0 == duration_after, "durations were different\n", rc);
+	assert("durations should be the same", -1 == duration_after, "durations were different\n", rc);
 
 	/* Disconnect with duration */
 	rc = MQTTSNSerialize_disconnect(buf, buflen, 33);