diff --git a/uwsgi.h b/uwsgi.h
index 9f77c857..64d22c47 100644
--- a/uwsgi.h
+++ b/uwsgi.h
@@ -212,8 +212,11 @@ extern "C" {
 
 
 #ifdef __linux__
-
-
+#ifdef __UCLIBC__
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#endif
 #include <sched.h>
 #include <sys/prctl.h>
 #include <linux/limits.h>