diff --git a/packages/core/src/Mark.ts b/packages/core/src/Mark.ts
index f76881b6..10a7fd82 100644
--- a/packages/core/src/Mark.ts
+++ b/packages/core/src/Mark.ts
@@ -2,7 +2,7 @@ import { MarkSpec, MarkType } from 'prosemirror-model'
 import Extension, { ExtensionCallback, ExtensionExtends } from './Extension'
 import { Editor } from './Editor'
 
-interface MarkCallback<Options> {
+export interface MarkCallback<Options> {
   name: string
   editor: Editor
   options: Options
diff --git a/packages/core/src/Node.ts b/packages/core/src/Node.ts
index 2c195be6..bd5e0f4e 100644
--- a/packages/core/src/Node.ts
+++ b/packages/core/src/Node.ts
@@ -2,7 +2,7 @@ import { NodeSpec, NodeType } from 'prosemirror-model'
 import Extension, { ExtensionCallback, ExtensionExtends } from './Extension'
 import { Editor } from './Editor'
 
-interface NodeCallback<Options> {
+export interface NodeCallback<Options> {
   name: string
   editor: Editor
   options: Options
diff --git a/packages/extension-focus/index.ts b/packages/extension-focus/index.ts
index aeeb4ab9..73c605d8 100644
--- a/packages/extension-focus/index.ts
+++ b/packages/extension-focus/index.ts
@@ -2,7 +2,7 @@ import { Extension } from '@tiptap/core'
 import { Plugin } from 'prosemirror-state'
 import { DecorationSet, Decoration } from 'prosemirror-view'
 
-interface FocusOptions {
+export interface FocusOptions {
   className: string,
   nested: boolean,
 }
diff --git a/packages/extension-heading/index.ts b/packages/extension-heading/index.ts
index d9cbc3f7..b153195e 100644
--- a/packages/extension-heading/index.ts
+++ b/packages/extension-heading/index.ts
@@ -3,7 +3,7 @@ import { textblockTypeInputRule } from 'prosemirror-inputrules'
 
 type Level = 1 | 2 | 3 | 4 | 5 | 6
 
-interface HeadingOptions {
+export interface HeadingOptions {
   levels: Level[],
 }
 
diff --git a/packages/extension-history/index.ts b/packages/extension-history/index.ts
index 2038ee81..4d17c61c 100644
--- a/packages/extension-history/index.ts
+++ b/packages/extension-history/index.ts
@@ -14,7 +14,7 @@ declare module '@tiptap/core/src/Editor' {
   }
 }
 
-interface HistoryOptions {
+export interface HistoryOptions {
   historyPluginOptions: Object,
 }