diff --git a/src/pulsecore/core-util.h b/src/pulsecore/core-util.h
index e28b6aa..fb0f941 100644
--- a/src/pulsecore/core-util.h
+++ b/src/pulsecore/core-util.h
@@ -26,6 +26,7 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/socket.h>
 
 #ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>