diff --git a/src/os/unix/ngx_time.h b/src/os/unix/ngx_time.h
index d942900..b8c6422 100644
--- a/src/os/unix/ngx_time.h
+++ b/src/os/unix/ngx_time.h
@@ -20,7 +20,10 @@
 #define ngx_tm_mon     tm_mon
 #define ngx_tm_year    tm_year
 #define ngx_tm_wday    tm_wday
+
+#ifndef SOLARIS
 #define ngx_tm_zone    tm_zone
+#endif
 
 
 void ngx_localtime(ngx_tm_t *tm);