diff --git a/src/generators/legacy-json/index.mjs b/src/generators/legacy-json/index.mjs
index a55aa84..df102a2 100644
--- a/src/generators/legacy-json/index.mjs
+++ b/src/generators/legacy-json/index.mjs
@@ -49,17 +49,17 @@ export default {
       return section;
     };
 
-    for (const node of headNodes) {
+    await Promise.all(headNodes.map(async node => {
       // Get the json for the node's section
       const section = processModuleNodes(node);
-
+    
       // Write it to the output file
       await writeFile(
         join(output, `${node.api}.json`),
         JSON.stringify(section),
         'utf8'
       );
-    }
+    }));
 
     return generatedValues;
   },