diff --git a/subprojects/gst-plugins-base/gst/tcp/gstmultifdsink.c b/subprojects/gst-plugins-base/gst/tcp/gstmultifdsink.c
index dfee7420eb..e0e710c5f3 100644
--- a/subprojects/gst-plugins-base/gst/tcp/gstmultifdsink.c
+++ b/subprojects/gst-plugins-base/gst/tcp/gstmultifdsink.c
@@ -122,6 +122,10 @@
 #include "gsttcpelements.h"
 #include "gstmultifdsink.h"
 
+#if !defined(FIONREAD) && defined(__sun)
+#include <sys/filio.h>
+#endif
+
 #define NOT_IMPLEMENTED 0
 
 GST_DEBUG_CATEGORY_STATIC (multifdsink_debug);