diff --git a/packages/iris-grid/src/IrisGridPartitionedTableModel.ts b/packages/iris-grid/src/IrisGridPartitionedTableModel.ts
index c9164c681e..57cc1ef7ac 100644
--- a/packages/iris-grid/src/IrisGridPartitionedTableModel.ts
+++ b/packages/iris-grid/src/IrisGridPartitionedTableModel.ts
@@ -58,11 +58,11 @@ class IrisGridPartitionedTableModel
     return this.partitionedTable.keyColumns;
   }
 
-  partitionKeysTable(): Promise<Table> {
+  async partitionKeysTable(): Promise<Table> {
     return this.partitionedTable.getKeyTable();
   }
 
-  partitionMergedTable(): Promise<Table> {
+  async partitionMergedTable(): Promise<Table> {
     return this.partitionedTable.getMergedTable();
   }
 
diff --git a/packages/iris-grid/src/IrisGridTableModel.ts b/packages/iris-grid/src/IrisGridTableModel.ts
index 6089446201..80be071b2d 100644
--- a/packages/iris-grid/src/IrisGridTableModel.ts
+++ b/packages/iris-grid/src/IrisGridTableModel.ts
@@ -197,7 +197,7 @@ class IrisGridTableModel
     return this.getCachedPartitionColumns(this.columns);
   }
 
-  partitionKeysTable(): Promise<Table> {
+  async partitionKeysTable(): Promise<Table> {
     return this.valuesTable(this.partitionColumns);
   }