diff --git a/progress.py b/progress.py
index 6bddaedbf7..d7fc14e7fb 100755
--- a/progress.py
+++ b/progress.py
@@ -104,7 +104,7 @@ codePct = 100 * code / codeSize
 bootPct = 100 * boot / bootSize
 ovlPct = 100 * ovl / ovlSize
 
-bytesPerHeartPiece = total / 80
+bytesPerHeartPiece = total // 80
 
 if args.format == 'csv':
     version = 1