diff --git a/protos/launcher_atom.proto b/protos/launcher_atom.proto
index dc9f8dd..fe81b4c 100644
--- a/protos/launcher_atom.proto
+++ b/protos/launcher_atom.proto
@@ -29,6 +29,7 @@
     Shortcut shortcut = 3;
     Widget widget = 4;
     FolderIcon folder_icon = 9;
+    Slice slice = 10;
     SearchActionItem search_action_item = 11;
   }
   // When used for launch event, stores the global predictive rank
@@ -170,6 +171,11 @@
   optional string label_info = 4;
 }
 
+// Contains Slice details for logging.
+message Slice{
+  optional string uri = 1;
+}
+
 // Represents SearchAction with in launcher
 message SearchActionItem{
   optional string package_name = 1;