diff --git a/include/syslog.h b/include/syslog.h
index d7668d35f2eafc63a9f709161470578595c6732a..e0d86c0d33466b7f08714290df6155d68cb77dbd 100644
--- a/include/syslog.h
+++ b/include/syslog.h
@@ -60,10 +60,10 @@ int setlogmask (int);
 void syslog (int, const char *, ...);
 
 #if defined(_GNU_SOURCE)
-void vsyslog (int, const char *, va_list);
-#if defined(SYSLOG_NAMES)
 #define __NEED_va_list
 #include <bits/alltypes.h>
+void vsyslog (int, const char *, va_list);
+#if defined(SYSLOG_NAMES)
 #define	INTERNAL_NOPRI 0x10
 #define	INTERNAL_MARK (LOG_NFACILITIES<<3)
 struct __CODE {