diff --git a/asio/include/asio/detail/impl/socket_ops.ipp b/asio/include/asio/detail/impl/socket_ops.ipp
index d72afec..cc93d63 100644
--- a/asio/include/asio/detail/impl/socket_ops.ipp
+++ b/asio/include/asio/detail/impl/socket_ops.ipp
@@ -332,14 +332,14 @@
       ioctl_arg_type arg = 0;
       ::ioctlsocket(s, FIONBIO, &arg);
 #else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if defined(__SYMBIAN32__)
+# if defined(__SYMBIAN32__) || defined(__Fuchsia__)
       int flags = ::fcntl(s, F_GETFL, 0);
       if (flags >= 0)
         ::fcntl(s, F_SETFL, flags & ~O_NONBLOCK);
-# else // defined(__SYMBIAN32__)
+# else // defined(__SYMBIAN32__) || defined(__Fuchsia__)
       ioctl_arg_type arg = 0;
       ::ioctl(s, FIONBIO, &arg);
-# endif // defined(__SYMBIAN32__)
+# endif // defined(__SYMBIAN32__) || defined(__Fuchsia__)
 #endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
       state &= ~non_blocking;
 
@@ -370,7 +370,7 @@
 #if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
   ioctl_arg_type arg = (value ? 1 : 0);
   int result = error_wrapper(::ioctlsocket(s, FIONBIO, &arg), ec);
-#elif defined(__SYMBIAN32__)
+#elif defined(__SYMBIAN32__) || defined(__Fuchsia__)
   int result = error_wrapper(::fcntl(s, F_GETFL, 0), ec);
   if (result >= 0)
   {
@@ -423,7 +423,7 @@
 #if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
   ioctl_arg_type arg = (value ? 1 : 0);
   int result = error_wrapper(::ioctlsocket(s, FIONBIO, &arg), ec);
-#elif defined(__SYMBIAN32__)
+#elif defined(__SYMBIAN32__) || defined(__Fuchsia__)
   int result = error_wrapper(::fcntl(s, F_GETFL, 0), ec);
   if (result >= 0)
   {