diff --git a/lib/dtsc.cpp b/lib/dtsc.cpp
index e1a2ef0b..2e9690b0 100644
--- a/lib/dtsc.cpp
+++ b/lib/dtsc.cpp
@@ -34,6 +34,9 @@ void DTSC::Stream::deletionCallback(livePos deleting){}
 /// Returns the time in milliseconds of the last received packet.
 /// This is _not_ the time this packet was received, only the stored time.
 unsigned int DTSC::Stream::getTime(){
+  if ( !buffers.size()){
+    return 0;
+  }
   return buffers.rbegin()->second["time"].asInt();
 }