diff --git a/src/include/sar.h b/src/include/sar.h
index 9da4dd943c..527a51a89d 100644
--- a/src/include/sar.h
+++ b/src/include/sar.h
@@ -54,4 +54,6 @@ struct wifi_sar_limits {
  */
 int get_wifi_sar_limits(struct wifi_sar_limits *sar_limits);
 
+const char *get_wifi_sar_cbfs_filename(void);
+
 #endif /* _SAR_H_ */
diff --git a/src/vendorcode/google/chromeos/sar.c b/src/vendorcode/google/chromeos/sar.c
index 6799f12a24..417b9b6744 100644
--- a/src/vendorcode/google/chromeos/sar.c
+++ b/src/vendorcode/google/chromeos/sar.c
@@ -26,7 +26,10 @@
 
 static int load_sar_file_from_cbfs(void *buf, size_t buffer_size)
 {
-	return cbfs_boot_load_file(WIFI_SAR_CBFS_FILENAME, buf,
+	const char *filename = get_wifi_sar_cbfs_filename();
+	if (filename == NULL)
+		filename = WIFI_SAR_CBFS_FILENAME;
+	return cbfs_boot_load_file(filename, buf,
 			buffer_size, CBFS_TYPE_RAW);
 }
 
@@ -120,3 +123,9 @@ int get_wifi_sar_limits(struct wifi_sar_limits *sar_limits)
 	memcpy(sar_limits, bin_buffer, bin_buff_adjusted_size);
 	return 0;
 }
+
+__weak
+const char *get_wifi_sar_cbfs_filename(void)
+{
+	return NULL;
+}