diff --git a/src/core/ext/transport/chttp2/transport/http2_settings.h b/src/core/ext/transport/chttp2/transport/http2_settings.h
index 61048a6478383c9b90403a1a51f46916d08ae9a0..9781cdc9893ac794fdb7f1454101f9e9013b1589 100644
--- a/src/core/ext/transport/chttp2/transport/http2_settings.h
+++ b/src/core/ext/transport/chttp2/transport/http2_settings.h
@@ -33,8 +33,8 @@
  * Automatically generated by tools/codegen/core/gen_settings_ids.py
  */
 
-#ifndef SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H
-#define SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H
+#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H
+#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H
 
 #include <stdbool.h>
 #include <stdint.h>
@@ -71,4 +71,4 @@ typedef struct {
 extern const grpc_chttp2_setting_parameters
     grpc_chttp2_settings_parameters[GRPC_CHTTP2_NUM_SETTINGS];
 
-#endif /* SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H */
+#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H */
diff --git a/tools/codegen/core/gen_settings_ids.py b/tools/codegen/core/gen_settings_ids.py
index cfc2c5d0a405618cc504a42c6ca6d52465900cd0..29c67956c70e0c1de4e1fc52356a39a57a3c65bb 100755
--- a/tools/codegen/core/gen_settings_ids.py
+++ b/tools/codegen/core/gen_settings_ids.py
@@ -80,8 +80,8 @@ with open(sys.argv[0]) as my_source:
 
 put_banner([H,C], ["Automatically generated by tools/codegen/core/gen_settings_ids.py"])
 
-print >>H, "#ifndef SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
-print >>H, "#define SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
+print >>H, "#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
+print >>H, "#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
 print >>H
 print >>H, "#include <stdint.h>"
 print >>H, "#include <stdbool.h>"
@@ -176,7 +176,7 @@ for decorated_setting in sorted(decorated_settings):
 print >>C, "};"
 
 print >>H
-print >>H, "#endif /* SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H */"
+print >>H, "#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H */"
 
 H.close()
 C.close()