diff --git a/lib/debezium/converters/bit.go b/lib/debezium/converters/bit.go
index e09c36cc..091a3ac0 100644
--- a/lib/debezium/converters/bit.go
+++ b/lib/debezium/converters/bit.go
@@ -28,7 +28,7 @@ func (b BitConverter) ToField(name string) debezium.Field {
 			FieldName:    name,
 			DebeziumType: debezium.Bits,
 			Type:         debezium.Bytes,
-			Parameters:   map[string]any{"length": b.charMaxLength},
+			Parameters:   map[string]any{"length": fmt.Sprint(b.charMaxLength)},
 		}
 	}
 }
diff --git a/lib/debezium/converters/bit_test.go b/lib/debezium/converters/bit_test.go
index 62b9cca5..12721b1f 100644
--- a/lib/debezium/converters/bit_test.go
+++ b/lib/debezium/converters/bit_test.go
@@ -12,8 +12,8 @@ func TestBitConverter_ToField(t *testing.T) {
 		field := NewBitConverter(0).ToField("foo")
 		assert.Equal(t, "foo", field.FieldName)
 		assert.Equal(t, "bytes", string(field.Type))
-		assert.Equal(t, map[string]interface{}{"length": 0}, field.Parameters)
 		assert.Equal(t, debezium.Bits, field.DebeziumType)
+		assert.Equal(t, map[string]interface{}{"length": "0"}, field.Parameters)
 	}
 	{
 		// char max size 1
@@ -27,6 +27,7 @@ func TestBitConverter_ToField(t *testing.T) {
 		assert.Equal(t, "foo", field.FieldName)
 		assert.Equal(t, "bytes", string(field.Type))
 		assert.Equal(t, debezium.Bits, field.DebeziumType)
+		assert.Equal(t, map[string]interface{}{"length": "5"}, field.Parameters)
 	}
 }