diff --git a/voice.py b/voice.py
index e248c7c..cb726a2 100644
--- a/voice.py
+++ b/voice.py
@@ -672,10 +672,12 @@ class VoiceSession:
                 # skips HKDF derivation → raw key stored → DEC_FAILED.
                 # Solution: set caller key HERE, after frame cryptor is initialized.
                 # Store video track for on-demand vision (look_at_screen tool)
+                # Screen share = source "screen_share" or "screenshare"; camera = "camera" or default
                 if int(t.kind) == 2:  # video track (LiveKit: 1=audio, 2=video)
+                    track_source = getattr(pub, 'source', None) or "unknown"
                     self._video_track = t
-                    logger.info("Video track stored from %s for on-demand vision", p.identity)
-                if int(t.kind) == 1 and e2ee_opts is not None:  # audio track only
+                    logger.info("Video track stored from %s source=%s for on-demand vision", p.identity, track_source)
+                if int(t.kind) in (1, 2) and e2ee_opts is not None:  # audio + video tracks
                     caller_id = p.identity
                     logger.info("E2EE_DIAG: track_subscribed for %s, have %d caller keys",
                                 caller_id, len(self._caller_all_keys))