diff --git a/src/core/lib/security/util/file_util.cc b/src/core/lib/security/util/file_util.cc
index e4aa98f45fb94..3daa27d5eb449 100644
--- a/src/core/lib/security/util/file_util.cc
+++ b/src/core/lib/security/util/file_util.cc
@@ -19,6 +19,7 @@
 
 #include <stdio.h>
 
+#include <grpc/slice.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
diff --git a/src/core/lib/security/util/file_util.h b/src/core/lib/security/util/file_util.h
index f3d7e3be58c55..f80bbe33bcc8a 100644
--- a/src/core/lib/security/util/file_util.h
+++ b/src/core/lib/security/util/file_util.h
@@ -18,6 +18,8 @@
 
 #include <grpc/support/port_platform.h>
 
+#include <string>
+
 #include "absl/strings/string_view.h"
 
 namespace grpc_core {