diff --git a/du3/program.c b/du3/program.c
index 70aadbf..42f5d3a 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -28,7 +28,7 @@ float IsArithCorrect(float num1, float num2, char op, float result)
         break;
 
         case '/':
-        num1 / num2 / calcResult;
+        calcResult = num1 / num2;
         break;
     }