diff --git a/moto/dynamodb/responses.py b/moto/dynamodb/responses.py
index 533657668..226d5d11a 100644
--- a/moto/dynamodb/responses.py
+++ b/moto/dynamodb/responses.py
@@ -278,7 +278,7 @@ class DynamoHandler(BaseResponse):
 
         result = {
             "Count": len(items),
-            "Items": [item.attrs for item in items],
+            "Items": [item.attrs for item in items if item],
             "ConsumedCapacityUnits": 1,
             "ScannedCount": scanned_count
         }
diff --git a/tests/test_dynamodb/test_dynamodb_table_with_range_key.py b/tests/test_dynamodb/test_dynamodb_table_with_range_key.py
index a50b7a666..f6ba9b307 100644
--- a/tests/test_dynamodb/test_dynamodb_table_with_range_key.py
+++ b/tests/test_dynamodb/test_dynamodb_table_with_range_key.py
@@ -419,6 +419,17 @@ def test_scan_with_undeclared_table():
     ).should.throw(DynamoDBResponseError)
 
 
+@mock_dynamodb
+def test_scan_after_has_item():
+    conn = boto.connect_dynamodb()
+    table = create_table(conn)
+    list(table.scan()).should.equal([])
+
+    table.has_item(hash_key='the-key', range_key='123')
+
+    list(table.scan()).should.equal([])
+
+
 @mock_dynamodb
 def test_write_batch():
     conn = boto.connect_dynamodb()
diff --git a/tests/test_dynamodb/test_dynamodb_table_without_range_key.py b/tests/test_dynamodb/test_dynamodb_table_without_range_key.py
index eafccb3dd..fa8492620 100644
--- a/tests/test_dynamodb/test_dynamodb_table_without_range_key.py
+++ b/tests/test_dynamodb/test_dynamodb_table_without_range_key.py
@@ -335,6 +335,17 @@ def test_scan_with_undeclared_table():
     ).should.throw(DynamoDBResponseError)
 
 
+@mock_dynamodb
+def test_scan_after_has_item():
+    conn = boto.connect_dynamodb()
+    table = create_table(conn)
+    list(table.scan()).should.equal([])
+
+    table.has_item('the-key')
+
+    list(table.scan()).should.equal([])
+
+
 @mock_dynamodb
 def test_write_batch():
     conn = boto.connect_dynamodb()