diff --git a/index.js b/index.js
index baf1549..3c1456d 100644
--- a/index.js
+++ b/index.js
@@ -64,6 +64,7 @@ const staticify = (root, options) => {
                 buildVersionHash(absFilePath, root, vers); // Whee!
             } else if (stat.isFile()) {
                 vers[`/${path.posix.relative(root, absFilePath)}`] = {absFilePath};
+                cachedMakeHash(absFilePath); // Just to warm-up cache
             }
         });