diff --git a/libretro-common/include/net/net_compat.h b/libretro-common/include/net/net_compat.h
index f00612e7ae..8fbe18620e 100644
--- a/libretro-common/include/net/net_compat.h
+++ b/libretro-common/include/net/net_compat.h
@@ -395,8 +395,8 @@ int getnameinfo_retro(const struct sockaddr *addr, socklen_t addrlen,
 
 bool addr_6to4(struct sockaddr_storage *addr);
 
-bool ipv4_is_lan_address(struct sockaddr_in *addr);
-bool ipv4_is_cgnat_address(struct sockaddr_in *addr);
+bool ipv4_is_lan_address(const struct sockaddr_in *addr);
+bool ipv4_is_cgnat_address(const struct sockaddr_in *addr);
 
 /**
  * network_init:
diff --git a/libretro-common/net/net_compat.c b/libretro-common/net/net_compat.c
index 0977d77a81..0bf5a6557d 100644
--- a/libretro-common/net/net_compat.c
+++ b/libretro-common/net/net_compat.c
@@ -423,7 +423,7 @@ bool addr_6to4(struct sockaddr_storage *addr)
    return true;
 }
 
-bool ipv4_is_lan_address(struct sockaddr_in *addr)
+bool ipv4_is_lan_address(const struct sockaddr_in *addr)
 {
    static const uint32_t subnets[] = {0x0A000000, 0xAC100000, 0xC0A80000};
    static const uint32_t masks[]   = {0xFF000000, 0xFFF00000, 0xFFFF0000};
@@ -440,7 +440,7 @@ bool ipv4_is_lan_address(struct sockaddr_in *addr)
    return false;
 }
 
-bool ipv4_is_cgnat_address(struct sockaddr_in *addr)
+bool ipv4_is_cgnat_address(const struct sockaddr_in *addr)
 {
    static const uint32_t subnet = 0x64400000;
    static const uint32_t mask   = 0xFFC00000;