diff --git a/app/models/charts.server.ts b/app/models/charts.server.ts
index d2f02d7..6e5d451 100644
--- a/app/models/charts.server.ts
+++ b/app/models/charts.server.ts
@@ -32,8 +32,10 @@ export async function generateDrinksChartData(id: number){
     var inventoryAfter = [];
 
     var lastInventoryAfter = history.length > 0 ? history[0].inventoryAfter + 1 : 0;
+    var previousCheckoutInventoryAfter = history.length > 0 ? history[0].inventoryAfter : 0;
 
     var lastChange = 0;
+
     for(let i = 0; i <= dates.length - 1; i++){
       let startDate = dates[i];
       let endDate = dates[i+1];
@@ -48,6 +50,16 @@ export async function generateDrinksChartData(id: number){
         }
       }
 
+      // There was inventory added
+      if((lastInventoryAfter + totalCheckouts) > previousCheckoutInventoryAfter){
+        if(i > 0 && checkouts[i-1] > 0){
+          // Special case, there were also checkouts the previous day, do nothing
+        } else if(i > 0) {
+          inventoryAfter[i - 1] = lastInventoryAfter + totalCheckouts;
+        }
+      }
+      previousCheckoutInventoryAfter = lastInventoryAfter;
+
       checkouts[i] = totalCheckouts;
       inventoryAfter[i] = lastInventoryAfter;
     }