diff --git a/build/build.ts b/build/build.ts
index 34285bb7..b2a439c6 100644
--- a/build/build.ts
+++ b/build/build.ts
@@ -105,7 +105,7 @@ let lastOutputLength = 0
 for (let i = 0; i < dtsEntries.length; i++) {
   const entry = dtsEntries[i]
 
-  const message = `Removing private fields(${i}/${dtsEntries.length}): ${entry}`
+  const message = `Removing private fields(${i + 1}/${dtsEntries.length}): ${entry}`
   writer.write(`\r${' '.repeat(lastOutputLength)}`)
   lastOutputLength = message.length
   writer.write(`\r${message}`)