diff --git a/src/cc/frontends/clang/loader.cc b/src/cc/frontends/clang/loader.cc
index 303d1001b19c..7950cda40051 100644
--- a/src/cc/frontends/clang/loader.cc
+++ b/src/cc/frontends/clang/loader.cc
@@ -266,6 +266,7 @@ int ClangLoader::parse(
                                    "-Wno-address-of-packed-member",
                                    "-Wno-unknown-warning-option",
 #if defined(__x86_64__) || defined(__i386__)
+                                   "-Wno-duplicate-decl-specifier",
                                    "-fcf-protection",
 #endif
                                    "-fno-color-diagnostics",