diff --git a/headers/private/net/net_socket.h b/headers/private/net/net_socket.h
index 0f9bf11e01..af6a85e971 100644
--- a/headers/private/net/net_socket.h
+++ b/headers/private/net/net_socket.h
@@ -56,7 +56,7 @@ struct net_socket_module_info {
 					size_t vecCount, size_t* _length);
 	status_t	(*writev)(net_socket* socket, const iovec* vecs,
 					size_t vecCount, size_t* _length);
-	status_t	(*control)(net_socket* socket, int32 op, void* data,
+	status_t	(*control)(net_socket* socket, uint32 op, void* data,
 					size_t length);
 
 	ssize_t		(*read_avail)(net_socket* socket);
diff --git a/src/add-ons/kernel/network/stack/net_socket.cpp b/src/add-ons/kernel/network/stack/net_socket.cpp
index 47007b4ff8..0eef150683 100644
--- a/src/add-ons/kernel/network/stack/net_socket.cpp
+++ b/src/add-ons/kernel/network/stack/net_socket.cpp
@@ -529,7 +529,7 @@ socket_writev(net_socket* socket, const iovec* vecs, size_t vecCount,
 
 
 status_t
-socket_control(net_socket* socket, int32 op, void* data, size_t length)
+socket_control(net_socket* socket, uint32 op, void* data, size_t length)
 {
 	switch (op) {
 		case FIONBIO: