diff --git a/example/dictionary.freeradius b/example/dictionary.freeradius
index 544d0d7..2a0ef55 100644
--- a/example/dictionary.freeradius
+++ b/example/dictionary.freeradius
@@ -34,4 +34,58 @@ VALUE	FreeRADIUS-Statistics-Type	Proxy-Auth-Acct		0x0c
 
 VALUE	FreeRADIUS-Statistics-Type	All			0x1f
 
-END-VENDOR FreeRADIUS
\ No newline at end of file
+#
+#   FreeRADIUS statistic result attributes
+#
+ATTRIBUTE   FreeRADIUS-Total-Access-Requests   128 integer
+ATTRIBUTE   FreeRADIUS-Total-Access-Accepts   129 integer
+ATTRIBUTE   FreeRADIUS-Total-Access-Rejects   130 integer
+ATTRIBUTE   FreeRADIUS-Total-Access-Challenges   131 integer
+ATTRIBUTE   FreeRADIUS-Total-Auth-Responses   132 integer
+ATTRIBUTE   FreeRADIUS-Total-Auth-Duplicate-Requests   133 integer
+ATTRIBUTE   FreeRADIUS-Total-Auth-Malformed-Requests   134 integer
+ATTRIBUTE   FreeRADIUS-Total-Auth-Invalid-Requests   135 integer
+ATTRIBUTE   FreeRADIUS-Total-Auth-Dropped-Requests   136 integer
+ATTRIBUTE   FreeRADIUS-Total-Auth-Unknown-Types   137 integer
+
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Requests   138 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Accepts   139 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Rejects   140 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Challenges   141 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Responses   142 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Duplicate-Requests   143 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Malformed-Requests   144 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Invalid-Requests   145 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Dropped-Requests   146 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Unknown-Types   147 integer
+
+ATTRIBUTE   FreeRADIUS-Total-Accounting-Requests   148 integer
+ATTRIBUTE   FreeRADIUS-Total-Accounting-Responses   149 integer
+ATTRIBUTE   FreeRADIUS-Total-Acct-Duplicate-Requests   150 integer
+ATTRIBUTE   FreeRADIUS-Total-Acct-Malformed-Requests   151 integer
+ATTRIBUTE   FreeRADIUS-Total-Acct-Invalid-Requests   152 integer
+ATTRIBUTE   FreeRADIUS-Total-Acct-Dropped-Requests   153 integer
+ATTRIBUTE   FreeRADIUS-Total-Acct-Unknown-Types   154 integer
+
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Accounting-Requests   155 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Accounting-Responses   156 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Duplicate-Requests   157 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Malformed-Requests   158 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Invalid-Requests   159 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Dropped-Requests   160 integer
+ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Unknown-Types   161 integer
+
+ATTRIBUTE   FreeRADIUS-Queue-Len-Internal   162 integer
+ATTRIBUTE   FreeRADIUS-Queue-Len-Proxy   163 integer
+ATTRIBUTE   FreeRADIUS-Queue-Len-Auth   164 integer
+ATTRIBUTE   FreeRADIUS-Queue-Len-Acct   165 integer
+ATTRIBUTE   FreeRADIUS-Queue-Len-Detail   166 integer
+
+ATTRIBUTE   FreeRADIUS-Stats-Start-Time   176 date
+ATTRIBUTE   FreeRADIUS-Stats-HUP-Time   177 date
+
+ATTRIBUTE   FreeRADIUS-Queue-PPS-In   181 integer
+ATTRIBUTE   FreeRADIUS-Queue-PPS-In   182 integer
+
+
+END-VENDOR FreeRADIUS
diff --git a/pyrad/client_async.py b/pyrad/client_async.py
index 24b7c24..e9d5df3 100644
--- a/pyrad/client_async.py
+++ b/pyrad/client_async.py
@@ -121,7 +121,7 @@ def datagram_received(self, data, addr):
         try:
             reply = Packet(packet=data, dict=self.client.dict)
 
-            if reply and reply.id in self.pending_requests:
+            if reply.code and reply.id in self.pending_requests:
                 req = self.pending_requests[reply.id]
                 packet = req['packet']