diff --git a/History.md b/History.md
index 479abb9f..5bde7d5a 100644
--- a/History.md
+++ b/History.md
@@ -2,6 +2,7 @@
 #822
 #843
 #854
+#786
 add getCalculation on calculatedInvoice
 Transactioncalculator getTaxDetails to include correct percentage, calculated amounts
 
diff --git a/library/src/main/java/org/mustangproject/CalculatedInvoice.java b/library/src/main/java/org/mustangproject/CalculatedInvoice.java
index f993db83..d496744f 100644
--- a/library/src/main/java/org/mustangproject/CalculatedInvoice.java
+++ b/library/src/main/java/org/mustangproject/CalculatedInvoice.java
@@ -103,7 +103,6 @@ public class CalculatedInvoice extends Invoice implements Serializable {
 	 * @return a updated transactioncalulator
 	 */
 	public TransactionCalculator getCalculation() {
-		calculate();
 		return tc;
 	}