diff --git a/calculator.js b/calculator.js
index 8eb9272..cc7c63b 100644
--- a/calculator.js
+++ b/calculator.js
@@ -13,6 +13,10 @@ const operatorPlus = document.getElementById("plus");
 
 function appendToDisplay(input){
 
+    if(input=='.' && display.value.includes('.')){
+        return;
+    }
+
     if(operatorSelected){
         if(operator == '+'){
             operatorPlus.style.backgroundColor = "#ff9f0a";