diff --git a/models/inventory/StockManager.ts b/models/inventory/StockManager.ts
index 1bbab3f1e..392d32e1b 100644
--- a/models/inventory/StockManager.ts
+++ b/models/inventory/StockManager.ts
@@ -107,7 +107,7 @@ export class StockManager {
       throw new ValidationError(t`Rate needs to be set`);
     }
 
-    if (details.rate.lte(0)) {
+    if (details.rate.lt(0)) {
       throw new ValidationError(
         t`Rate (${details.rate.float}) has to be greater than zero`
       );