1 files changed, 2 insertions, 0 deletions
diff --git a/system/include/emscripten/wire.h b/system/include/emscripten/wire.h
index bb70f26c..ec302d3a 100755
--- a/system/include/emscripten/wire.h
+++ b/system/include/emscripten/wire.h
@@ -7,6 +7,8 @@
 //
 // We'll call the on-the-wire type WireType.
 
+#include <cstdlib>
+
 namespace emscripten {
     namespace internal {
         typedef const struct _TYPEID* TYPEID;