diff --git a/include/ntapi/nt_socket.h b/include/ntapi/nt_socket.h
index 977dd17..6491786 100644
--- a/include/ntapi/nt_socket.h
+++ b/include/ntapi/nt_socket.h
@@ -434,8 +434,8 @@ typedef struct _nt_afd_disconnect_info {
 /* socket functions */
 typedef int32_t __cdecl ntapi_sc_socket(
 	__out	nt_socket *		hssocket,
-	__in	uint16_t		domain,
-	__in	uint16_t		type,
+	__in	int32_t			domain,
+	__in	int32_t			type,
 	__in	uint32_t		protocol,
 	__in	uint32_t		desired_access	__optional,
 	__in	nt_sqos *		sqos		__optional,
diff --git a/src/socket/ntapi_sc_socket_v1.c b/src/socket/ntapi_sc_socket_v1.c
index bfdfc83..c9b4519 100644
--- a/src/socket/ntapi_sc_socket_v1.c
+++ b/src/socket/ntapi_sc_socket_v1.c
@@ -26,8 +26,8 @@ typedef struct _nt_afd_socket_ea {
 
 int32_t __cdecl __ntapi_sc_socket_v1(
 	__out	nt_socket *		hssocket,
-	__in	uint16_t		domain,
-	__in	uint16_t		type,
+	__in	int32_t			domain,
+	__in	int32_t			type,
 	__in	uint32_t		protocol,
 	__in	uint32_t		desired_access	__optional,
 	__in	nt_sqos *		sqos		__optional,
diff --git a/src/socket/ntapi_sc_socket_v2.c b/src/socket/ntapi_sc_socket_v2.c
index 0f114fe..2fc30e5 100644
--- a/src/socket/ntapi_sc_socket_v2.c
+++ b/src/socket/ntapi_sc_socket_v2.c
@@ -31,8 +31,8 @@ typedef struct _nt_afd_socket_ea {
 
 int32_t __cdecl __ntapi_sc_socket_v2(
 	__out	nt_socket *		hssocket,
-	__in	uint16_t		domain,
-	__in	uint16_t		type,
+	__in	int32_t			domain,
+	__in	int32_t			type,
 	__in	uint32_t		protocol,
 	__in	uint32_t		desired_access	__optional,
 	__in	nt_sqos *		sqos		__optional,