diff --git a/types/draft-js/index.d.ts b/types/draft-js/index.d.ts
index 5516e43559..af97b6d676 100644
--- a/types/draft-js/index.d.ts
+++ b/types/draft-js/index.d.ts
@@ -798,8 +798,8 @@ declare namespace Draft {
                 "undo"
             )
 
-            interface BlockMapBuilder {
-                createFromArray(blocks: Array<ContentBlock>): BlockMap;
+            class BlockMapBuilder {
+                static createFromArray(blocks: Array<ContentBlock>): BlockMap;
             }
 
             const DefaultDraftBlockRenderMap: Immutable.Map<any, any>;