diff --git a/kube-core/src/request.rs b/kube-core/src/request.rs
index 40b9ee61b..730e840ba 100644
--- a/kube-core/src/request.rs
+++ b/kube-core/src/request.rs
@@ -118,6 +118,9 @@ impl Request {
         if pp.dry_run {
             qp.append_pair("dryRun", "All");
         }
+        if let Some(ref fm) = pp.field_manager {
+            qp.append_pair("fieldManager", fm);
+        }
         let urlstr = qp.finish();
         let req = http::Request::post(urlstr).header(http::header::CONTENT_TYPE, JSON_MIME);
         req.body(data).map_err(Error::BuildRequest)
@@ -195,6 +198,9 @@ impl Request {
         if pp.dry_run {
             qp.append_pair("dryRun", "All");
         }
+        if let Some(ref fm) = pp.field_manager {
+            qp.append_pair("fieldManager", fm);
+        }
         let urlstr = qp.finish();
         let req = http::Request::put(urlstr).header(http::header::CONTENT_TYPE, JSON_MIME);
         req.body(data).map_err(Error::BuildRequest)
@@ -268,6 +274,9 @@ impl Request {
         if pp.dry_run {
             qp.append_pair("dryRun", "All");
         }
+        if let Some(ref fm) = pp.field_manager {
+            qp.append_pair("fieldManager", fm);
+        }
         let urlstr = qp.finish();
         let req = http::Request::put(urlstr).header(http::header::CONTENT_TYPE, JSON_MIME);
         req.body(data).map_err(Error::BuildRequest)
diff --git a/kube-core/src/subresource.rs b/kube-core/src/subresource.rs
index ae180d7df..b3823cb2e 100644
--- a/kube-core/src/subresource.rs
+++ b/kube-core/src/subresource.rs
@@ -105,6 +105,9 @@ impl Request {
         if pp.dry_run {
             qp.append_pair("dryRun", "All");
         }
+        if let Some(ref fm) = pp.field_manager {
+            qp.append_pair("fieldManager", fm);
+        }
         let urlstr = qp.finish();
         // eviction body parameters are awkward, need metadata with name
         let data = serde_json::to_vec(&serde_json::json!({