diff --git a/src/network/net_pcap.c b/src/network/net_pcap.c
index 114fb72b0..f3921a658 100644
--- a/src/network/net_pcap.c
+++ b/src/network/net_pcap.c
@@ -122,7 +122,7 @@ static const unsigned char
 			*(*f_pcap_next)(void *,void *);
 static int		(*f_pcap_sendpacket)(void *,const unsigned char *,int);
 static void		(*f_pcap_close)(void *);
-#ifdef __linux__
+#ifndef _WIN32
 static int              (*f_pcap_setnonblock)(void*, int, char*);
 #endif
 static dllimp_t pcap_imports[] = {
@@ -135,7 +135,7 @@ static dllimp_t pcap_imports[] = {
   { "pcap_next",	&f_pcap_next		},
   { "pcap_sendpacket",	&f_pcap_sendpacket	},
   { "pcap_close",	&f_pcap_close		},
-#ifdef __linux__
+#ifndef _WIN32
   { "pcap_setnonblock",	&f_pcap_setnonblock	},
 #endif
   { NULL,		NULL			},
@@ -388,7 +388,7 @@ net_pcap_reset(const netcard_t *card, uint8_t *mac)
 	pcap_log(" Unable to open device: %s!\n", network_host);
 	return(-1);
     }
-#ifdef __linux__
+#ifndef _WIN32
     if (f_pcap_setnonblock((void*)pcap, 1, errbuf) != 0)
         pcap_log("PCAP: failed nonblock %s\n", errbuf);
 #endif