diff --git a/src/zm_eventstream.h b/src/zm_eventstream.h
index 0a2714186..636ef3726 100644
--- a/src/zm_eventstream.h
+++ b/src/zm_eventstream.h
@@ -59,6 +59,7 @@ class EventStream : public StreamBase {
       time_t          start_time;
       time_t          end_time;
       double          duration;
+      double          frames_duration;
       char            path[PATH_MAX];
       int             n_frames;       // # of frame rows returned from database
       FrameData       *frames;