diff --git a/vmbalance b/vmbalance
index 0f91b92..a9e33fd 100644
--- a/vmbalance
+++ b/vmbalance
@@ -39,6 +39,6 @@ BEGIN {
     }
 }
 END {
-    left=allocs-freed
+    left=allocs-frees
     print script ": " sum " bytes, " left " left chunks, " allocs " chunks allocated, and " frees " chunks freed" > "/dev/fd/3"
 }