diff --git a/main.py b/main.py
index a82bc77..82cc4d3 100644
--- a/main.py
+++ b/main.py
@@ -908,9 +908,7 @@ async def get_programs_scores(data: dict):
             prog_sn = row['program_sn']
             if prog_sn not in result:
                 result[prog_sn] = {}
-            result[prog_sn][row['judge_id']] = (
-                row['final_total'] if row['final_total'] != 0 else None
-            )
+            result[prog_sn][row['judge_id']] = row['final_total']
     return result
 
 
@@ -1864,7 +1862,9 @@ HTML_TEMPLATE = """
                 oldValue = input.value;
             };
             input.onchange = () => {
-                saveJudgeScore(field, parseFloat(input.value)||null).then((success)=>{
+                let val = parseFloat(input.value);
+                if (isNaN(val)) val = null;
+                saveJudgeScore(field, val).then((success)=>{
                     if (success) {
                         oldValue = input.value;
                     } else {