diff --git a/Dockerfile b/Dockerfile
index 7f4ebc2d15..4d0670731d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -45,7 +45,10 @@ COPY --chown=hermes:hermes . .
 
 # Build browser dashboard and terminal UI assets.
 RUN cd web && npm run build && \
-    cd ../ui-tui && npm run build
+    cd ../ui-tui && npm run build && \
+    rm -rf node_modules/@hermes/ink && \
+    cp -R packages/hermes-ink node_modules/@hermes/ink && \
+    node -e "import('@hermes/ink')"
 
 # ---------- Permissions ----------
 # Make install dir world-readable so any HERMES_UID can read it at runtime.
diff --git a/tests/tools/test_dockerfile_pid1_reaping.py b/tests/tools/test_dockerfile_pid1_reaping.py
index 7538162798..57400c6e44 100644
--- a/tests/tools/test_dockerfile_pid1_reaping.py
+++ b/tests/tools/test_dockerfile_pid1_reaping.py
@@ -122,3 +122,13 @@ def test_dockerfile_builds_tui_assets(dockerfile_text):
         and "run build" in step
         for step in _run_steps(dockerfile_text)
     )
+
+
+def test_dockerfile_materializes_local_tui_ink_package(dockerfile_text):
+    assert any(
+        "ui-tui" in step
+        and "node_modules/@hermes/ink" in step
+        and "packages/hermes-ink" in step
+        and "import('@hermes/ink')" in step
+        for step in _run_steps(dockerfile_text)
+    )