diff --git a/cv3/program.c b/cv3/program.c
index a8a5363..5c21ecc 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -107,12 +107,13 @@ int main(int argc, char const *argv[])
         }
         else
         {
-            if(calculate(&calc_stack, buf[0]) == 1)
+            int calc_code = calculate(&calc_stack, buf[0]);
+            if(calc_code == 1)
             {
                 printf("division by zero\n");
                 return 0;
             }
-            else if(calculate(&calc_stack, buf[0]) == 2)
+            else if(calc_code == 2)
             {
                 printf("not enough operands\n");
                 return 0;