diff --git a/sim_ether.c b/sim_ether.c
index 4c21c12e..16d383db 100644
--- a/sim_ether.c
+++ b/sim_ether.c
@@ -1748,6 +1748,13 @@ static int pcap_mac_if_vms(const char *AdapterName, unsigned char MACAddress[6])
 }
 #endif /* defined (__VMS) && !defined(__VAX) */
 
+#if SIM_MAJOR != 4
+static const char *sim_get_tool_path (const char *tool)
+{
+return tool;
+}
+#endif
+
 static void eth_get_nic_hw_addr(ETH_DEV* dev, const char *devname, int set_on)
 {
   memset(&dev->host_nic_phy_hw_addr, 0, sizeof(dev->host_nic_phy_hw_addr));