diff --git a/src/core/libraries/network/posix_sockets.cpp b/src/core/libraries/network/posix_sockets.cpp
index bd8ab6406..6ca60fbb4 100644
--- a/src/core/libraries/network/posix_sockets.cpp
+++ b/src/core/libraries/network/posix_sockets.cpp
@@ -3,6 +3,7 @@
 
 #include <common/assert.h>
 #include "net.h"
+#include "net_error.h"
 #include "sockets.h"
 
 namespace Libraries::Net {
@@ -51,6 +52,17 @@ int PosixSocket::SetSocketOptions(int level, int optname, const void* optval, un
         case ORBIS_NET_SO_SNDTIMEO:
             return ConvertReturnErrorCode(
                 setsockopt(sock, level, SO_SNDTIMEO, (const char*)optval, optlen));
+        case ORBIS_NET_SO_NBIO: {
+            if (optlen != sizeof(sockopt_so_nbio)) {
+                return ORBIS_NET_ERROR_EFAULT;
+            }
+            memcpy(&sockopt_so_nbio, optval, optlen);
+#ifdef _WIN32
+            return ConvertReturnErrorCode(ioctlsocket(sock, FIONBIO, (u_long*)&sockopt_so_nbio));
+#else
+            return ConvertReturnErrorCode(ioctl(sock, FIONBIO, &sockopt_so_nbio));
+#endif
+        }
         }
     }
     UNREACHABLE_MSG("Unknown level ={} optname ={}", level, optname);
diff --git a/src/core/libraries/network/sockets.h b/src/core/libraries/network/sockets.h
index de2b61e85..16c10eedf 100644
--- a/src/core/libraries/network/sockets.h
+++ b/src/core/libraries/network/sockets.h
@@ -42,6 +42,7 @@ struct Socket {
 
 struct PosixSocket : public Socket {
     net_socket sock;
+    int sockopt_so_nbio = 0;
     explicit PosixSocket(int domain, int type, int protocol)
         : Socket(domain, type, protocol), sock(socket(domain, type, protocol)) {}
     int SetSocketOptions(int level, int optname, const void* optval, unsigned int optlen) override;