diff --git a/src/useCalculator/useCalculator.tsx b/src/useCalculator/useCalculator.tsx
index f228e07..d90201b 100644
--- a/src/useCalculator/useCalculator.tsx
+++ b/src/useCalculator/useCalculator.tsx
@@ -219,6 +219,7 @@ export function useCalculator() {
     { kbd: "n", title: "±", onClick: handlePlusMinus, main: true },
     { kbd: "0", title: "0", onClick: handleNumeral(0), main: true },
     { kbd: ".", title: ".", onClick: handleComma, main: true },
+    { kbd: ",", title: ",", onClick: handleComma, main: true },
     // secondary
     {
       kbd: "M",