diff --git a/quic/platform/api/quic_stack_trace.h b/quic/platform/api/quic_stack_trace.h
index 1a1a10c..64411f0 100644
--- a/quic/platform/api/quic_stack_trace.h
+++ b/quic/platform/api/quic_stack_trace.h
@@ -10,7 +10,7 @@
 
 namespace quic {
 
-inline QuicString QuicStackTrace() {
+inline std::string QuicStackTrace() {
   return QuicStackTraceImpl();
 }