diff --git a/protos/common.proto b/protos/common.proto
index d1234d5..b1c13ae 100644
--- a/protos/common.proto
+++ b/protos/common.proto
@@ -11,6 +11,11 @@
     string id = 1;
 }
 
+// Represents a list of IDs
+message IDs {
+    repeated ID items = 1;
+}
+
 enum TestModeKeys {
     api_test=0;
 }