diff --git a/packages/store/addon/-private/system/fetch-manager.ts b/packages/store/addon/-private/system/fetch-manager.ts
index 0e91da72e76..d4a9524c13c 100644
--- a/packages/store/addon/-private/system/fetch-manager.ts
+++ b/packages/store/addon/-private/system/fetch-manager.ts
@@ -474,7 +474,12 @@ export default class FetchManager {
         snapshots[i] = new Snapshot(options, identifiers[i], this._store);
       }
 
-      let groups: Snapshot[][] = adapter.groupRecordsForFindMany(this, snapshots);
+      let groups: Snapshot[][];
+      if (adapter.groupRecordsForFindMany) {
+        groups = adapter.groupRecordsForFindMany(this, snapshots);
+      } else {
+        groups = [snapshots];
+      }
 
       for (let i = 0, l = groups.length; i < l; i++) {
         this._processCoalescedGroup(seeking, groups[i], adapter, optionsMap, modelName);