diff --git a/UI/RenderConfigUIManager.cs b/UI/RenderConfigUIManager.cs
index e739ed5..5033547 100644
--- a/UI/RenderConfigUIManager.cs
+++ b/UI/RenderConfigUIManager.cs
@@ -178,17 +178,16 @@ namespace ADOFAIRenderer.UI
             // 4. 랜덤 시드 로우
             var randomSeedRow = CreateRow();
             var randomSeedLabel = CreateFormLabel("랜덤 시드 (입력 선택)");
-            var randomSeedField = new IntegerField { name = "AdvancedRandomSeed", label = "", value = tempConfig.RandomSeed ?? 0 };
-            
-            if (!tempConfig.RandomSeed.HasValue)
+            var randomSeedField = new TextField { name = "AdvancedRandomSeed", label = "", value = tempConfig.RandomSeed?.ToString() ?? string.Empty };
+
+            randomSeedField.RegisterValueChangedCallback(evt =>
             {
-                var textProperty = typeof(IntegerField).GetProperty("text", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.FlattenHierarchy);
-                if (textProperty == null)
+                if (string.IsNullOrEmpty(evt.newValue)) return;
+                if (!int.TryParse(evt.newValue, out _) && evt.newValue != "-")
                 {
-                    textProperty = typeof(TextInputBaseField<int>).GetProperty("text", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.FlattenHierarchy);
+                    randomSeedField.SetValueWithoutNotify(evt.previousValue);
                 }
-                textProperty?.SetValue(randomSeedField, string.Empty);
-            }
+            });
 
             randomSeedRow.Add(randomSeedLabel);
             randomSeedRow.Add(randomSeedField);
@@ -214,9 +213,9 @@ namespace ADOFAIRenderer.UI
             {
                 tempConfig.ProcessAudio = processAudioToggle.value;
                 tempConfig.NonTile = nonTileToggle.value;
-                if (!string.IsNullOrEmpty(randomSeedField.text))
+                if (int.TryParse(randomSeedField.value?.Trim(), out var seed))
                 {
-                    tempConfig.RandomSeed = randomSeedField.value;
+                    tempConfig.RandomSeed = seed;
                 }
                 else
                 {