diff --git a/sim_ether.c b/sim_ether.c
index cbb54161..26641932 100644
--- a/sim_ether.c
+++ b/sim_ether.c
@@ -720,7 +720,7 @@ t_stat eth_show (FILE* st, UNIT* uptr, int32 val, void* desc)
   return SCPE_OK;
 }
 
-t_stat eth_show_devices (FILE* st, DEVICE *dptr, UNIT* uptr, int32 val, void* desc)
+t_stat eth_show_devices (FILE* st, DEVICE *dptr, UNIT* uptr, int32 val, char* desc)
 {
 return eth_show (st, uptr, val, desc);
 }
diff --git a/sim_ether.h b/sim_ether.h
index f26e2e39..7706ffef 100644
--- a/sim_ether.h
+++ b/sim_ether.h
@@ -291,7 +291,7 @@ void eth_packet_trace_ex (ETH_DEV* dev, const uint8 *msg, int len, char* txt, in
 t_stat eth_show (FILE* st, UNIT* uptr,                  /* show ethernet devices */
                  int32 val, void* desc);
 t_stat eth_show_devices (FILE* st, DEVICE *dptr,        /* show ethernet devices */
-                         UNIT* uptr, int32 val, void* desc);
+                         UNIT* uptr, int32 val, char* desc);
 void eth_show_dev (FILE*st, ETH_DEV* dev);              /* show ethernet device state */
 
 void eth_mac_fmt      (ETH_MAC* add, char* buffer);     /* format ethernet mac address */