diff --git a/src/lib/turtle/InvManager.hx b/src/lib/turtle/InvManager.hx
index 582dd0c..4fb55c9 100644
--- a/src/lib/turtle/InvManager.hx
+++ b/src/lib/turtle/InvManager.hx
@@ -165,7 +165,9 @@ class InvManager {
 				botState.count -= transferCount;
 				invState.set(slot, botState);
 
-				if (count - transferCount <= 0) {
+				count -= transferCount;
+
+				if (count <= 0) {
 					break;
 				}
 			}