diff --git a/packages/color-diff-napi/src/index.ts b/packages/color-diff-napi/src/index.ts
index 779e23b65..f8c0d70b2 100644
--- a/packages/color-diff-napi/src/index.ts
+++ b/packages/color-diff-napi/src/index.ts
@@ -528,19 +528,20 @@ function highlightLine(
     // hljs throws on unknown language despite ignoreIllegals
     return [[defaultStyle(theme), code]]
   }
-  if (!hasRootNode(result.emitter)) {
+  const emitter = result._emitter;
+  if (!hasRootNode(emitter)) {
     if (!loggedEmitterShapeError) {
       loggedEmitterShapeError = true
       logError(
         new Error(
-          `color-diff: hljs emitter shape mismatch (keys: ${Object.keys(result.emitter).join(',')}). Syntax highlighting disabled.`,
+          `color-diff: hljs emitter shape mismatch (keys: ${Object.keys(emitter).join(',')}). Syntax highlighting disabled.`,
         ),
       )
     }
     return [[defaultStyle(theme), code]]
   }
   const blocks: Block[] = []
-  flattenHljs(result.emitter.rootNode, theme, undefined, blocks)
+  flattenHljs(emitter.rootNode, theme, undefined, blocks)
   return blocks
 }