diff --git a/common/js/types.d.ts b/common/js/types.d.ts
index e67c66aac..729a9225d 100644
--- a/common/js/types.d.ts
+++ b/common/js/types.d.ts
@@ -315,6 +315,7 @@ export interface KTBlackImportDocument extends MongoDBDocument {
     idStrings: IDStrings[];
     importID: string;
     importInfo: ImportProcessingInfo[];
+    createdSessions: string[];
     importType: ImportTypes;
 }
 export interface UserGoalDocument extends MongoDBDocument {
diff --git a/common/src/types.ts b/common/src/types.ts
index e403a7b5f..f54e95995 100644
--- a/common/src/types.ts
+++ b/common/src/types.ts
@@ -453,6 +453,8 @@ export interface KTBlackImportDocument extends MongoDBDocument {
     idStrings: IDStrings[];
     importID: string;
     importInfo: ImportProcessingInfo[];
+    // For performance reasons, imports only show what sessions they created, rather than what sessions they didn't.
+    createdSessions: string[];
     importType: ImportTypes;
 }