diff --git a/src/zm_time.h b/src/zm_time.h
index de9d2a22f..a9af32777 100644
--- a/src/zm_time.h
+++ b/src/zm_time.h
@@ -77,8 +77,6 @@ struct DeltaTimeval
 #define MSEC_PER_SEC 1000
 
 extern struct timeval tv;
-typedef typeof(tv.tv_sec) ast_time_t;
-typedef typeof(tv.tv_usec) ast_suseconds_t;
 
 inline int tvDiffUsec( struct timeval first, struct timeval last )
 {