diff --git a/renderdoc/serialise/streamio.cpp b/renderdoc/serialise/streamio.cpp
index 489631268..7d4db6e1b 100644
--- a/renderdoc/serialise/streamio.cpp
+++ b/renderdoc/serialise/streamio.cpp
@@ -23,6 +23,7 @@
  ******************************************************************************/
 
 #include "streamio.h"
+#include <errno.h>
 
 Compressor::~Compressor()
 {