diff --git a/.ts/index.js b/.ts/index.js
index 5976a1d..1c0350b 100644
--- a/.ts/index.js
+++ b/.ts/index.js
@@ -573,6 +573,7 @@ var UnControlled = (function (_super) {
         if (this.props.editorWillUnmount) {
             this.props.editorWillUnmount(cm);
         }
+        this.hydrated = false;
     };
     UnControlled.prototype.shouldComponentUpdate = function (nextProps, nextState) {
         var update = true;
diff --git a/index.js b/index.js
index f82b52f..87e72e3 100644
--- a/index.js
+++ b/index.js
@@ -607,6 +607,7 @@ var UnControlled = function(_super) {
     if (this.props.editorWillUnmount) {
       this.props.editorWillUnmount(cm);
     }
+    this.hydrated = false;
   };
   UnControlled.prototype.shouldComponentUpdate = function(nextProps, nextState) {
     var update = true;
diff --git a/src/index.tsx b/src/index.tsx
index a021139..435c5a4 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -813,6 +813,7 @@ export class UnControlled extends React.Component<IUnControlledCodeMirror, any>
     if (this.props.editorWillUnmount) {
       this.props.editorWillUnmount(cm);
     }
+    this.hydrated = false;
   }
 
   /** @internal */