diff --git a/src/bin/proxmox-backup-client.rs b/src/bin/proxmox-backup-client.rs
index ffe5b3dd..4bb05bd1 100644
--- a/src/bin/proxmox-backup-client.rs
+++ b/src/bin/proxmox-backup-client.rs
@@ -510,7 +510,7 @@ async fn list_snapshots(param: Value) -> Result<Value, Error> {
         .sortby("backup-id", false)
         .sortby("backup-time", false)
         .column(ColumnConfig::new("backup-id").renderer(render_snapshot_path).header("snapshot"))
-        .column(ColumnConfig::new("size"))
+        .column(ColumnConfig::new("size").renderer(tools::format::render_bytes_human_readable))
         .column(ColumnConfig::new("files").renderer(render_files))
         ;
 
diff --git a/src/tools/format.rs b/src/tools/format.rs
index c3aa791b..8fe6aa82 100644
--- a/src/tools/format.rs
+++ b/src/tools/format.rs
@@ -50,6 +50,19 @@ pub fn render_bool_with_default_true(value: &Value, _record: &Value) -> Result<S
     Ok((if value { "1" } else { "0" }).to_string())
 }
 
+pub fn render_bytes_human_readable(value: &Value, _record: &Value) -> Result<String, Error> {
+    if value.is_null() { return Ok(String::new()); }
+    let text = match value.as_u64() {
+        Some(bytes) => {
+            HumanByte::from(bytes).to_string()
+        }
+        None => {
+            value.to_string()
+        }
+    };
+    Ok(text)
+}
+
 pub struct HumanByte {
     b: usize,
 }