diff --git a/core/spooler.c b/core/spooler.c
index 3b43eb9e..3ce2fbb1 100644
--- a/core/spooler.c
+++ b/core/spooler.c
@@ -1,6 +1,6 @@
 #include "uwsgi.h"
 
-#if defined(__sun)  && defined(__SVR4)
+#ifdef __sun__
 #include "strings.h"
 #endif