diff --git a/test/BUILD.gn b/test/BUILD.gn
index 4e4107667b..d588dd792c 100644
--- a/test/BUILD.gn
+++ b/test/BUILD.gn
@@ -215,6 +215,7 @@ rtc_library("rtp_test_utils") {
 }
 
 rtc_library("field_trial") {
+  testonly = true
   visibility = [ "*" ]
   sources = [
     "field_trial.cc",
@@ -235,7 +236,6 @@ rtc_library("explicit_key_value_config") {
   ]
 
   deps = [
-    ":field_trial",
     "../api:field_trials_view",
     "../rtc_base:checks",
   ]
@@ -243,6 +243,7 @@ rtc_library("explicit_key_value_config") {
 }
 
 rtc_library("scoped_key_value_config") {
+  testonly = true
   visibility = [ "*" ]
   sources = [
     "scoped_key_value_config.cc",