diff --git a/types/reveal.js/index.d.ts b/types/reveal.js/index.d.ts
index 97a2c13805de4d..e8c06180ce6765 100644
--- a/types/reveal.js/index.d.ts
+++ b/types/reveal.js/index.d.ts
@@ -1535,7 +1535,7 @@ declare namespace Reveal {
      */
     interface HighlightConfig {
         highlightOnLoad?: boolean;
-        excapeHTML?: boolean;
+        escapeHTML?: boolean;
         beforeHighlight?: (...args: any) => any;
     }
 
diff --git a/types/reveal.js/reveal.esm.js-tests.ts b/types/reveal.js/reveal.esm.js-tests.ts
index b2335e6a30128a..90543a35b283c5 100644
--- a/types/reveal.js/reveal.esm.js-tests.ts
+++ b/types/reveal.js/reveal.esm.js-tests.ts
@@ -342,7 +342,7 @@ deck.initialize({
     // highlight
     highlight: {
         highlightOnLoad: true,
-        excapeHTML: true,
+        escapeHTML: true,
         beforeHighlight: () => {},
     },
 
diff --git a/types/reveal.js/reveal.js-tests.ts b/types/reveal.js/reveal.js-tests.ts
index 3ebe0c2f6d3bea..eb83eb1d0d147e 100644
--- a/types/reveal.js/reveal.js-tests.ts
+++ b/types/reveal.js/reveal.js-tests.ts
@@ -372,7 +372,7 @@ deck.initialize({
     // highlight
     highlight: {
         highlightOnLoad: true,
-        excapeHTML: true,
+        escapeHTML: true,
         beforeHighlight: () => {},
     },