diff --git a/src/libclient/api/call.h b/src/libclient/api/call.h
index cc63b08c9d3be58fb5884081903957d61dd69f2b..dc0717d6492ca8cb9cc2662b32ab09aff299bf12 100644
--- a/src/libclient/api/call.h
+++ b/src/libclient/api/call.h
@@ -172,7 +172,7 @@ struct Info
                         callInfo["is_sharing"] = false;
                     } else {
                         callInfo["is_sharing"] = true;
-                        callInfo["preview_id"] = media[MediaAttributeKey::SOURCE];
+                        previewId = media[MediaAttributeKey::SOURCE];
                     }
                 }
                 if (media[MediaAttributeKey::ENABLED] == TRUE_STR