1 files changed, 2 insertions, 2 deletions
diff --git a/bin/reduceOverlap.js b/bin/reduceOverlap.js
index c5da852..62ba10d 100755
--- a/bin/reduceOverlap.js
+++ b/bin/reduceOverlap.js
@@ -41,7 +41,7 @@ const index = new Transform({
     sourceCount++
 
     if (!argv.quiet) {
-      if (sourceCount % 10000 === 0) {
+      if (process.stdout.isTTY && sourceCount % 10000 === 0) {
         process.stdout.write(` ${sourceCount / 1000}k\r`)
       }
     }
@@ -67,7 +67,7 @@ const reduce = new Transform({
   transform(key, encoding, callback) {
     reduceIndex++
     if (!argv.quiet) {
-      if (reduceIndex % 10000 === 0) {
+      if (process.stdout.isTTY && reduceIndex % 10000 === 0) {
         process.stdout.write(` ${reduceIndex / 1000}k / ${Math.round(sourceCount / 1000)}k (${Math.round(reduceIndex / sourceCount * 100)}%)\r`)
       }
     }