diff --git a/util/model_util.py b/util/model_util.py
index 0e5aa2a..9d3324b 100644
--- a/util/model_util.py
+++ b/util/model_util.py
@@ -36,7 +36,7 @@ def ie_settlement(img_path, layout):
     response = requests.post(url, {'img_path': img_path, 'layout': json.dumps(layout)})
     if response.status_code == 200:
         ie_result = response.json()
-        if ie_result.get(0):
+        if ie_result:
             return ie_result[0]
     return None
 
@@ -53,7 +53,7 @@ def ie_settlement_text(text):
     response = requests.post(url, {'text': text})
     if response.status_code == 200:
         ie_result = response.json()
-        if ie_result.get(0):
+        if ie_result:
             return ie_result[0]
     return None
 
@@ -71,7 +71,7 @@ def ie_discharge(img_path, layout):
     response = requests.post(url, {'img_path': img_path, 'layout': json.dumps(layout)})
     if response.status_code == 200:
         ie_result = response.json()
-        if ie_result.get(0):
+        if ie_result:
             return ie_result[0]
     return None
 
@@ -88,7 +88,7 @@ def ie_discharge_text(text):
     response = requests.post(url, {'text': text})
     if response.status_code == 200:
         ie_result = response.json()
-        if ie_result.get(0):
+        if ie_result:
             return ie_result[0]
     return None
 
@@ -106,7 +106,7 @@ def ie_cost(img_path, layout):
     response = requests.post(url, {'img_path': img_path, 'layout': json.dumps(layout)})
     if response.status_code == 200:
         ie_result = response.json()
-        if ie_result.get(0):
+        if ie_result:
             return ie_result[0]
     return None
 
@@ -123,7 +123,7 @@ def ie_cost_text(text):
     response = requests.post(url, {'text': text})
     if response.status_code == 200:
         ie_result = response.json()
-        if ie_result.get(0):
+        if ie_result:
             return ie_result[0]
     return None