diff --git a/MMLanScan/External Libs/SimplePing/SimplePing.m b/MMLanScan/External Libs/SimplePing/SimplePing.m
index fa24b41..c7404e0 100755
--- a/MMLanScan/External Libs/SimplePing/SimplePing.m	
+++ b/MMLanScan/External Libs/SimplePing/SimplePing.m	
@@ -611,7 +611,6 @@ - (void)stopDataTransfer
 {
     if (self->_socket != NULL) {
         CFSocketInvalidate(self->_socket);
-        CFRelease(self->_socket);
         self->_socket = NULL;
     }
 }