diff --git a/sys/dev/hyperv/hvsock/hv_sock.c b/sys/dev/hyperv/hvsock/hv_sock.c
--- a/sys/dev/hyperv/hvsock/hv_sock.c
+++ b/sys/dev/hyperv/hvsock/hv_sock.c
@@ -384,8 +384,7 @@
 	}
 
 	if (SOLISTENING(so)) {
-		bzero(pcb, sizeof(*pcb));
-		free(pcb, M_HVSOCK);
+		zfree(pcb, M_HVSOCK);
 	}
 
 	so->so_pcb = NULL;
@@ -1704,8 +1703,7 @@
 		}
 
 
-		bzero(sc->pcb, sizeof(struct hvs_pcb));
-		free(sc->pcb, M_HVSOCK);
+		zfree(sc->pcb, M_HVSOCK);
 		sc->pcb = NULL;
 
 		if (so) {