diff --git a/src/wayland-client-core.h b/src/wayland-client-core.h
index 157da431..a70d4f09 100644
--- a/src/wayland-client-core.h
+++ b/src/wayland-client-core.h
@@ -27,7 +27,6 @@
 #define WAYLAND_CLIENT_CORE_H
 
 #include <stdint.h>
-#include <time.h>
 #include "wayland-util.h"
 #include "wayland-version.h"
 
@@ -35,6 +34,8 @@
 extern "C" {
 #endif
 
+struct timespec;
+
 /** \class wl_proxy
  *
  * \brief Represents a protocol object on the client side.