diff --git a/types/select2/index.d.ts b/types/select2/index.d.ts
index 719e6673f8..f3492b6bb1 100644
--- a/types/select2/index.d.ts
+++ b/types/select2/index.d.ts
@@ -44,7 +44,7 @@ interface Select2Options {
     minimumInputLength?: number;
     maximumInputLength?: number;
     minimumResultsForSearch?: number;
-    maximumSelectionSize?: number;
+    maximumSelectionLength?: number;
     placeholder?: string | IdTextPair;
     separator?: string;
     allowClear?: boolean;
@@ -211,4 +211,4 @@ declare class Select2 {
     $selection: JQuery;
     $results: JQuery;
     options: {options: Select2Options};
-}
\ No newline at end of file
+}
diff --git a/types/select2/select2-tests.ts b/types/select2/select2-tests.ts
index c10b482cab..5d794e64e0 100644
--- a/types/select2/select2-tests.ts
+++ b/types/select2/select2-tests.ts
@@ -32,7 +32,7 @@ $("#e5").select2({
     }
 });
 
-$("#e19").select2({ maximumSelectionSize: 3 });
+$("#e19").select2({ maximumSelectionLength: 3 });
 $("#e10").select2({
     data: [{ id: 0, text: 'enhancement' }, { id: 1, text: 'bug' }, { id: 2, text: 'duplicate' }, { id: 3, text: 'invalid' }, { id: 4, text: 'wontfix' }]
 });