diff --git a/test/BUILD.gn b/test/BUILD.gn
index ae0f3ba8d3..e9d63ca42b 100644
--- a/test/BUILD.gn
+++ b/test/BUILD.gn
@@ -251,6 +251,7 @@ rtc_library("scoped_key_value_config") {
     ":field_trial",
     "../api:webrtc_key_value_config",
     "../rtc_base:checks",
+    "../system_wrappers:field_trial",
   ]
   absl_deps = [ "//third_party/abseil-cpp/absl/strings:strings" ]
 }
diff --git a/test/scoped_key_value_config.cc b/test/scoped_key_value_config.cc
index 723be22261..d6090b7f31 100644
--- a/test/scoped_key_value_config.cc
+++ b/test/scoped_key_value_config.cc
@@ -12,6 +12,7 @@
 
 #include "api/webrtc_key_value_config.h"
 #include "rtc_base/checks.h"
+#include "system_wrappers/include/field_trial.h"
 #include "test/field_trial.h"
 
 namespace {
@@ -112,7 +113,9 @@ std::string ScopedKeyValueConfig::LookupRecurse(absl::string_view key) const {
     return parent_->LookupRecurse(key);
   }
 
-  return "";
+  // When at the root, check the global string so that test programs using
+  // a mix between ScopedKeyValueConfig and the global string continue to work
+  return webrtc::field_trial::FindFullName(std::string(key));
 }
 
 }  // namespace test