diff --git a/mkspecs/hurd-g++/qplatformdefs.h b/mkspecs/hurd-g++/qplatformdefs.h
index 3c80cbdfade..b1887aae7f5 100644
--- a/mkspecs/hurd-g++/qplatformdefs.h
+++ b/mkspecs/hurd-g++/qplatformdefs.h
@@ -59,6 +59,7 @@
 // We are hot - unistd.h should have turned on the specific APIs we requested
 
 
+#include <features.h>
 #include <pthread.h>
 #include <dirent.h>
 #include <fcntl.h>