diff --git a/lib/install.js b/lib/install.js
index 8af0caca..45b1b199 100644
--- a/lib/install.js
+++ b/lib/install.js
@@ -143,13 +143,14 @@ function place_binary(uri, targetDir, opts, callback) {
           log.info('install', `unpacking ${entry.path}`);
         };
 
+        // resolve on extract close, not source end, so files are fully written before the caller loads them
         dataStream.pipe(extract(targetDir, countExtractions))
           .on('error', (e) => {
             reject(e);
+          })
+          .on('close', () => {
+            resolve(`extracted file count: ${extractions}`);
           });
-        dataStream.on('end', () => {
-          resolve(`extracted file count: ${extractions}`);
-        });
         dataStream.on('error', (e) => {
           reject(e);
         });