1 files changed, 3 insertions, 0 deletions
diff --git a/missing.h b/missing.h
index ac499bd7d7..ecd357ef7d 100644
--- a/missing.h
+++ b/missing.h
@@ -21,6 +21,9 @@ struct timeval {
     time_t tv_usec;	/* microseconds */
 };
 #endif
+#if defined(HAVE_SYS_TYPES_H)
+#  include <sys/types.h>
+#endif
 
 #ifndef HAVE_ACOSH
 extern double acosh _((double));