diff --git a/core/network.c b/core/network.c
index aa16bda9..ced08207 100644
--- a/core/network.c
+++ b/core/network.c
@@ -169,7 +169,7 @@ void shutdown_networking()
   address should represent IPv4, IPv6 or a hostname
   on success returns a data in network byte order that can be used to set IP.i or IP_Port.ip.i
   on failure returns -1 */
-int resolve_addr(char *address)
+int resolve_addr(const char *address)
 {
     struct addrinfo hints;
     memset(&hints, 0, sizeof(hints));
diff --git a/core/network.h b/core/network.h
index aaaaa409..8af4b32f 100644
--- a/core/network.h
+++ b/core/network.h
@@ -125,7 +125,7 @@ void shutdown_networking();
     address should represent IPv4, IPv6 or a hostname
     on success returns a data in network byte order that can be used to set IP.i or IP_Port.ip.i
     on failure returns -1 */
-int resolve_addr(char *address);
+int resolve_addr(const char *address);
 
 #ifdef __cplusplus
 }