diff --git a/include/uv.h b/include/uv.h
index 597323884..130b630fb 100644
--- a/include/uv.h
+++ b/include/uv.h
@@ -2057,8 +2057,8 @@ UV_EXTERN int uv_ip4_addr(const char* ip, int port, struct sockaddr_in* addr);
 UV_EXTERN int uv_ip6_addr(const char* ip, int port, struct sockaddr_in6* addr);
 
 /* Convert binary addresses to strings */
-UV_EXTERN int uv_ip4_name(struct sockaddr_in* src, char* dst, size_t size);
-UV_EXTERN int uv_ip6_name(struct sockaddr_in6* src, char* dst, size_t size);
+UV_EXTERN int uv_ip4_name(const struct sockaddr_in* src, char* dst, size_t size);
+UV_EXTERN int uv_ip6_name(const struct sockaddr_in6* src, char* dst, size_t size);
 
 /* Cross-platform IPv6-capable implementation of the 'standard' inet_ntop */
 /* and inet_pton functions. On success they return 0. If an error */
diff --git a/src/uv-common.c b/src/uv-common.c
index 2a6316a87..a7a3f74c1 100644
--- a/src/uv-common.c
+++ b/src/uv-common.c
@@ -142,12 +142,12 @@ int uv_ip6_addr(const char* ip, int port, struct sockaddr_in6* addr) {
 }
 
 
-int uv_ip4_name(struct sockaddr_in* src, char* dst, size_t size) {
+int uv_ip4_name(const struct sockaddr_in* src, char* dst, size_t size) {
   return uv_inet_ntop(AF_INET, &src->sin_addr, dst, size);
 }
 
 
-int uv_ip6_name(struct sockaddr_in6* src, char* dst, size_t size) {
+int uv_ip6_name(const struct sockaddr_in6* src, char* dst, size_t size) {
   return uv_inet_ntop(AF_INET6, &src->sin6_addr, dst, size);
 }