diff --git a/STYLE_GUIDE.md b/STYLE_GUIDE.md
index e57ad9f821f..35df25f23f1 100644
--- a/STYLE_GUIDE.md
+++ b/STYLE_GUIDE.md
@@ -212,7 +212,7 @@ export class Something {
   connectedCallback() {}
   componentWillLoad() {}
   componentDidLoad() {}
-  disconnectedCallbac() {}
+  disconnectedCallback() {}
 
   /**
    * 8. Listeners
diff --git a/src/compiler/transformers/decorators-to-static/method-decorator.ts b/src/compiler/transformers/decorators-to-static/method-decorator.ts
index d35fe166659..2e930950b7b 100644
--- a/src/compiler/transformers/decorators-to-static/method-decorator.ts
+++ b/src/compiler/transformers/decorators-to-static/method-decorator.ts
@@ -95,7 +95,7 @@ export const validateMethods = (diagnostics: d.Diagnostic[], members: ts.NodeArr
     if (method.name.getText() === 'componentDidUnload') {
       const err = buildError(diagnostics);
       err.header = `Replace "componentDidUnload()" with "disconnectedCallback()"`;
-      err.messageText = `The "componentDidUnload()" method was removed in Stencil 2. Please use the "disconnectedCallbac()" method instead.`;
+      err.messageText = `The "componentDidUnload()" method was removed in Stencil 2. Please use the "disconnectedCallback()" method instead.`;
       augmentDiagnosticWithNode(err, method.name);
     }
   });