--- pcap-linux.c
+++ pcap-linux.c
@@ -1060,6 +1060,9 @@
 	struct sock_fprog	fcode;
 	int			can_filter_in_kernel;
 	int			err = 0;
+	memset(&fcode, 0, sizeof(fcode)); 
+	fcode.len = 0; 
+	fcode.filter = NULL; 
 #endif
 
 	if (!handle)
@@ -1094,8 +1097,6 @@
 		 * sake of correctness I added this check.
 		 */
 		fprintf(stderr, "Warning: Filter too complex for kernel\n");
-		fcode.len = 0;
-		fcode.filter = NULL;
 		can_filter_in_kernel = 0;
 	} else
 #endif /* USHRT_MAX */