diff --git a/test/core/security/check_gcp_environment_linux_test.cc b/test/core/security/check_gcp_environment_linux_test.cc
index 6c436a39451..3acd5b6ae48 100644
--- a/test/core/security/check_gcp_environment_linux_test.cc
+++ b/test/core/security/check_gcp_environment_linux_test.cc
@@ -16,6 +16,8 @@
  *
  */
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/security/credentials/alts/check_gcp_environment.h"
 
 #if GPR_LINUX
diff --git a/test/core/security/check_gcp_environment_windows_test.cc b/test/core/security/check_gcp_environment_windows_test.cc
index 46179b747d7..2b9407e8cad 100644
--- a/test/core/security/check_gcp_environment_windows_test.cc
+++ b/test/core/security/check_gcp_environment_windows_test.cc
@@ -16,6 +16,8 @@
  *
  */
 
+#include <grpc/support/port_platform.h>
+
 #include "src/core/lib/security/credentials/alts/check_gcp_environment.h"
 
 #ifdef GPR_WINDOWS