diff --git a/codex-rs/core/src/client.rs b/codex-rs/core/src/client.rs
index c19b3b2d6e..50f9dd295e 100644
--- a/codex-rs/core/src/client.rs
+++ b/codex-rs/core/src/client.rs
@@ -131,6 +131,7 @@ pub const X_CODEX_TURN_STATE_HEADER: &str = "x-codex-turn-state";
 pub const X_CODEX_TURN_METADATA_HEADER: &str = "x-codex-turn-metadata";
 pub const X_CODEX_PARENT_THREAD_ID_HEADER: &str = "x-codex-parent-thread-id";
 pub const X_CODEX_WINDOW_ID_HEADER: &str = "x-codex-window-id";
+pub const X_OPENAI_MEMGEN_REQUEST_HEADER: &str = "x-openai-memgen-request";
 pub const X_OPENAI_SUBAGENT_HEADER: &str = "x-openai-subagent";
 pub const X_RESPONSESAPI_INCLUDE_TIMING_METRICS_HEADER: &str =
     "x-responsesapi-include-timing-metrics";
@@ -572,6 +573,15 @@ impl ModelClient {
         {
             extra_headers.insert(X_OPENAI_SUBAGENT_HEADER, val);
         }
+        if matches!(
+            self.state.session_source,
+            SessionSource::SubAgent(SubAgentSource::MemoryConsolidation)
+        ) {
+            extra_headers.insert(
+                X_OPENAI_MEMGEN_REQUEST_HEADER,
+                HeaderValue::from_static("true"),
+            );
+        }
         extra_headers
     }