diff --git a/types/ui-grid/index.d.ts b/types/ui-grid/index.d.ts
index 7d646dbbf8..ca8663ce38 100644
--- a/types/ui-grid/index.d.ts
+++ b/types/ui-grid/index.d.ts
@@ -3799,7 +3799,7 @@ declare namespace uiGrid {
          * If suppressRemoveSort is also set, the unsorted state will be skipped even if it is listed here. Each direction may
          * not appear in the list more than once (e.g. [ASC, DESC, DESC] is not allowed), and the list may not be empty.*
          */
-        sortDirectionCycle?: Array<IUiGridConstants>;
+        sortDirectionCycle?: Array<null | string>;
         /**
          * Algorithm to use for sorting this column. Takes 'a' and 'b' parameters
          * like any normal sorting function with additional 'rowA', 'rowB', and 'direction'
diff --git a/types/ui-grid/ui-grid-tests.ts b/types/ui-grid/ui-grid-tests.ts
index 2426dbfe54..06f18384a5 100644
--- a/types/ui-grid/ui-grid-tests.ts
+++ b/types/ui-grid/ui-grid-tests.ts
@@ -93,6 +93,7 @@ columnDef.sort = {
     priority: 1
 };
 columnDef.sortCellFiltered = false;
+columnDef.sortDirectionCycle = [null, 'asc' , 'desc'];
 columnDef.sortingAlgorithm = (a: any, b: any, rowA: uiGrid.IGridRowOf<IMyEntity>, rowB: uiGrid.IGridRowOf<IMyEntity>, direction: string) => {
     return -1;
 };