Sanity
diff --git a/src/core/lib/security/credentials/composite/composite_credentials.h b/src/core/lib/security/credentials/composite/composite_credentials.h
index 3e360c1..43974a9 100644
--- a/src/core/lib/security/credentials/composite/composite_credentials.h
+++ b/src/core/lib/security/credentials/composite/composite_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_COMPOSITE_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_COMPOSITE_CREDENTIALS_H
 
 #include "src/core/lib/security/credentials/credentials.h"
 
@@ -68,4 +68,4 @@
   grpc_call_credentials_array inner;
 } grpc_composite_call_credentials;
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_COMPOSITE_COMPOSITE_CREDENTIALS_H
diff --git a/src/core/lib/security/credentials/fake/fake_credentials.h b/src/core/lib/security/credentials/fake/fake_credentials.h
index e2403b5..ffc4cb2 100644
--- a/src/core/lib/security/credentials/fake/fake_credentials.h
+++ b/src/core/lib/security/credentials/fake/fake_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_FAKE_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_FAKE_CREDENTIALS_H
 
 #include "src/core/lib/security/credentials/credentials.h"
 
@@ -52,4 +52,4 @@
   int is_async;
 } grpc_md_only_test_credentials;
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_FAKE_FAKE_CREDENTIALS_H
diff --git a/src/core/lib/security/credentials/google_default/google_default_credentials.h b/src/core/lib/security/credentials/google_default/google_default_credentials.h
index 838989f..0d14cbf 100644
--- a/src/core/lib/security/credentials/google_default/google_default_credentials.h
+++ b/src/core/lib/security/credentials/google_default/google_default_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_GOOGLE_DEFAULT_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_GOOGLE_DEFAULT_CREDENTIALS_H
 
 #include "src/core/lib/security/credentials/credentials.h"
 
@@ -42,4 +42,4 @@
 
 void grpc_flush_cached_google_default_credentials(void);
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_GOOGLE_DEFAULT_GOOGLE_DEFAULT_CREDENTIALS_H
diff --git a/src/core/lib/security/credentials/iam/iam_credentials.h b/src/core/lib/security/credentials/iam/iam_credentials.h
index 06b4db8..e989bfc 100644
--- a/src/core/lib/security/credentials/iam/iam_credentials.h
+++ b/src/core/lib/security/credentials/iam/iam_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_IAM_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_IAM_CREDENTIALS_H
 
 #include "src/core/lib/security/credentials/credentials.h"
 
@@ -41,4 +41,4 @@
   grpc_credentials_md_store *iam_md;
 } grpc_google_iam_credentials;
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_IAM_IAM_CREDENTIALS_H
diff --git a/src/core/lib/security/credentials/jwt/jwt_credentials.h b/src/core/lib/security/credentials/jwt/jwt_credentials.h
index 6fba3df..dfa4a1e 100644
--- a/src/core/lib/security/credentials/jwt/jwt_credentials.h
+++ b/src/core/lib/security/credentials/jwt/jwt_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_CREDENTIALS_H
 
 #include "src/core/lib/security/credentials/credentials.h"
 #include "src/core/lib/security/credentials/jwt/json_token.h"
@@ -59,4 +59,4 @@
 grpc_service_account_jwt_access_credentials_create_from_auth_json_key(
     grpc_auth_json_key key, gpr_timespec token_lifetime);
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_JWT_CREDENTIALS_H
diff --git a/src/core/lib/security/credentials/oauth2/oauth2_credentials.h b/src/core/lib/security/credentials/oauth2/oauth2_credentials.h
index 017f823..be7bc81 100644
--- a/src/core/lib/security/credentials/oauth2/oauth2_credentials.h
+++ b/src/core/lib/security/credentials/oauth2/oauth2_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_OAUTH2_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_OAUTH2_CREDENTIALS_H
 
 #include "src/core/lib/json/json.h"
 #include "src/core/lib/security/credentials/credentials.h"
@@ -106,4 +106,4 @@
     const struct grpc_http_response *response,
     grpc_credentials_md_store **token_md, gpr_timespec *token_lifetime);
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_OAUTH2_OAUTH2_CREDENTIALS_H
diff --git a/src/core/lib/security/credentials/plugin/plugin_credentials.h b/src/core/lib/security/credentials/plugin/plugin_credentials.h
index 0b91d2f..b5dd3ad 100644
--- a/src/core/lib/security/credentials/plugin/plugin_credentials.h
+++ b/src/core/lib/security/credentials/plugin/plugin_credentials.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_CREDENTIALS_H
-#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_PLUGIN_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_PLUGIN_CREDENTIALS_H
 
 #include "src/core/lib/security/credentials/credentials.h"
 
@@ -42,4 +42,4 @@
   grpc_credentials_md_store *plugin_md;
 } grpc_plugin_credentials;
 
-#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_CREDENTIALS_H
+#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_PLUGIN_PLUGIN_CREDENTIALS_H
diff --git a/src/core/lib/security/transport/tsi_error.h b/src/core/lib/security/transport/tsi_error.h
index 5406b84..0b691a4 100644
--- a/src/core/lib/security/transport/tsi_error.h
+++ b/src/core/lib/security/transport/tsi_error.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef TSI_ERROR_H
-#define TSI_ERROR_H
+#ifndef GRPC_CORE_LIB_SECURITY_TRANSPORT_TSI_ERROR_H
+#define GRPC_CORE_LIB_SECURITY_TRANSPORT_TSI_ERROR_H
 
 #include "src/core/lib/iomgr/error.h"
 #include "src/core/lib/tsi/transport_security_interface.h"
 
 grpc_error *grpc_set_tsi_error_bits(grpc_error *error, tsi_result result);
 
-#endif
+#endif /* GRPC_CORE_LIB_SECURITY_TRANSPORT_TSI_ERROR_H */