diff --git a/src/container.rs b/src/container.rs
index 60f7d61f..c0269ebb 100644
--- a/src/container.rs
+++ b/src/container.rs
@@ -1292,7 +1292,7 @@ pub struct HostConfig {
     pub device_cgroup_rules: Option<String>,
     pub device_requests: Option<Vec<DeviceRequest>>,
     #[serde(rename = "KernelMemoryTCP")]
-    pub kernel_memory_tcp: i64,
+    pub kernel_memory_tcp: Option<i64>,
     pub memory_reservation: Option<i64>,
     pub memory_swap: Option<i64>,
     pub memory_swappiness: Option<i64>,
diff --git a/src/image.rs b/src/image.rs
index 6df8cb71..a0e95dc5 100644
--- a/src/image.rs
+++ b/src/image.rs
@@ -790,7 +790,8 @@ pub struct ImageInfo {
     pub labels: Option<HashMap<String, String>>,
     pub repo_tags: Option<Vec<String>>,
     pub repo_digests: Option<Vec<String>>,
-    pub virtual_size: u64,
+    pub size: u64,
+    pub virtual_size: Option<u64>,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
@@ -811,7 +812,7 @@ pub struct ImageDetails {
     pub repo_tags: Option<Vec<String>>,
     pub repo_digests: Option<Vec<String>>,
     pub size: u64,
-    pub virtual_size: u64,
+    pub virtual_size: Option<u64>,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]