diff --git a/polygerrit-ui/app/rules.bzl b/polygerrit-ui/app/rules.bzl
index ca8c402227..075e34a39d 100644
--- a/polygerrit-ui/app/rules.bzl
+++ b/polygerrit-ui/app/rules.bzl
@@ -20,6 +20,7 @@ def polygerrit_bundle(name, srcs, outs, app):
         ],
         language = "ECMASCRIPT5",
         deps = [name + "_closure_lib"],
+        dependency_mode = "PRUNE_LEGACY",
     )
 
     # TODO(davido): Remove JSC_REFERENCE_BEFORE_DECLARE when this is fixed upstream:
diff --git a/tools/bzl/js.bzl b/tools/bzl/js.bzl
index 2726f4154c..e6c48709df 100644
--- a/tools/bzl/js.bzl
+++ b/tools/bzl/js.bzl
@@ -484,6 +484,7 @@ def polygerrit_plugin(name, app, srcs = [], deps = [], assets = None, plugin_nam
         deps = [
             name + "_closure_lib",
         ],
+        dependency_mode = "PRUNE_LEGACY",
     )
 
     if html_plugin: