diff --git a/docs/src/demos/Experiments/Annotation/extension/AnnotationItem.ts b/docs/src/demos/Experiments/Annotation/extension/AnnotationItem.ts
index 2f356c31..dfcc92cd 100644
--- a/docs/src/demos/Experiments/Annotation/extension/AnnotationItem.ts
+++ b/docs/src/demos/Experiments/Annotation/extension/AnnotationItem.ts
@@ -17,8 +17,8 @@ export class AnnotationItem {
     return this.decoration.to
   }
 
-  get content() {
-    return this.decoration.type.spec.content
+  get data() {
+    return this.decoration.type.spec.data
   }
 
   get HTMLAttributes() {
@@ -28,7 +28,7 @@ export class AnnotationItem {
   toString() {
     return JSON.stringify({
       id: this.id,
-      content: this.content,
+      data: this.data,
       from: this.from,
       to: this.to,
       HTMLAttributes: this.HTMLAttributes,
diff --git a/docs/src/demos/Experiments/Annotation/extension/AnnotationState.ts b/docs/src/demos/Experiments/Annotation/extension/AnnotationState.ts
index 471d8363..9687266a 100644
--- a/docs/src/demos/Experiments/Annotation/extension/AnnotationState.ts
+++ b/docs/src/demos/Experiments/Annotation/extension/AnnotationState.ts
@@ -41,14 +41,14 @@ export class AnnotationState {
     const ystate = ySyncPluginKey.getState(state)
     const { type, binding } = ystate
     const { map } = this.options
-    const { from, to, content } = action
+    const { from, to, data } = action
     const absoluteFrom = absolutePositionToRelativePosition(from, type, binding.mapping)
     const absoluteTo = absolutePositionToRelativePosition(to, type, binding.mapping)
 
     map.set(this.randomId(), {
       from: absoluteFrom,
       to: absoluteTo,
-      content,
+      data,
     })
   }
 
@@ -73,16 +73,16 @@ export class AnnotationState {
     Array
       .from(map.keys())
       .forEach(id => {
-        const decoration = map.get(id)
-        const from = relativePositionToAbsolutePosition(doc, type, decoration.from, binding.mapping)
-        const to = relativePositionToAbsolutePosition(doc, type, decoration.to, binding.mapping)
+        const annotation = map.get(id)
+        const from = relativePositionToAbsolutePosition(doc, type, annotation.from, binding.mapping)
+        const to = relativePositionToAbsolutePosition(doc, type, annotation.to, binding.mapping)
 
         if (!from || !to) {
           return
         }
 
         return decorations.push(
-          Decoration.inline(from, to, HTMLAttributes, { id, content: decoration.content }),
+          Decoration.inline(from, to, HTMLAttributes, { id, data: annotation.data }),
         )
       })
 
diff --git a/docs/src/demos/Experiments/Annotation/extension/annotation.ts b/docs/src/demos/Experiments/Annotation/extension/annotation.ts
index 1f9011f4..6ccddb67 100644
--- a/docs/src/demos/Experiments/Annotation/extension/annotation.ts
+++ b/docs/src/demos/Experiments/Annotation/extension/annotation.ts
@@ -4,7 +4,7 @@ import { AnnotationPlugin, AnnotationPluginKey } from './AnnotationPlugin'
 
 export interface AddAnnotationAction {
   type: 'addAnnotation',
-  content: any,
+  data: any,
   from: number,
   to: number,
 }
@@ -12,7 +12,7 @@ export interface AddAnnotationAction {
 export interface UpdateAnnotationAction {
   type: 'updateAnnotation',
   id: string,
-  content: any,
+  data: any,
 }
 
 export interface DeleteAnnotationAction {
@@ -77,29 +77,29 @@ export const Annotation = Extension.create({
 
   addCommands() {
     return {
-      addAnnotation: (content: any): Command => ({ dispatch, state }) => {
+      addAnnotation: (data: any): Command => ({ dispatch, state }) => {
         const { selection } = state
 
         if (selection.empty) {
           return false
         }
 
-        if (dispatch && content) {
+        if (dispatch && data) {
           state.tr.setMeta(AnnotationPluginKey, <AddAnnotationAction>{
             type: 'addAnnotation',
             from: selection.from,
             to: selection.to,
-            content,
+            data,
           })
         }
 
         return true
       },
-      updateAnnotation: (id: string, content: any): Command => ({ dispatch, state }) => {
+      updateAnnotation: (id: string, data: any): Command => ({ dispatch, state }) => {
         if (dispatch) {
           state.tr.setMeta(AnnotationPluginKey, <UpdateAnnotationAction>{
             type: 'updateAnnotation',
-            content,
+            data,
           })
         }
 
diff --git a/docs/src/demos/Experiments/Annotation/index.vue b/docs/src/demos/Experiments/Annotation/index.vue
index 75036ceb..979bbc3f 100644
--- a/docs/src/demos/Experiments/Annotation/index.vue
+++ b/docs/src/demos/Experiments/Annotation/index.vue
@@ -103,26 +103,26 @@ export default {
 
   methods: {
     addComment() {
-      const content = prompt('Comment', '')
+      const data = prompt('Comment', '')
 
-      this.editor.commands.addAnnotation(content)
+      this.editor.commands.addAnnotation(data)
     },
     updateComment(id) {
       const comment = this.comments.find(item => {
         return id === item.id
       })
 
-      const content = prompt('Comment', comment.content)
+      const data = prompt('Comment', comment.data)
 
-      this.editor.commands.updateAnnotation(id, content)
+      this.editor.commands.updateAnnotation(id, data)
     },
     deleteComment(id) {
       this.editor.commands.deleteAnnotation(id)
     },
     addAnotherComment() {
-      const content = prompt('Comment', '')
+      const data = prompt('Comment', '')
 
-      this.anotherEditor.commands.addAnnotation(content)
+      this.anotherEditor.commands.addAnnotation(data)
     },
   },