diff --git a/du4/program.c b/du4/program.c
index aefa25e..9964a3d 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -46,9 +46,8 @@ int main() {
             start++;
         }
 
+        float result=0;
         if (valid) {
-            // Evaluate expression
-            float result=0;
             switch (op) {
                 case '+':
                     result = num1 + num2;