diff --git a/lib/libspl/include/locale.h b/lib/libspl/include/locale.h
index ecb7642b5f..98ca330c3f 100644
--- a/lib/libspl/include/locale.h
+++ b/lib/libspl/include/locale.h
@@ -30,5 +30,6 @@
 #define _LIBSPL_LOCALE_H
 
 #include <time.h>
+#include <sys/time.h>
 
 #endif