diff --git a/components/esp_usb_cdc_rom_console/CMakeLists.txt b/components/esp_usb_cdc_rom_console/CMakeLists.txt
index 01f3551f44..40dfb942c8 100644
--- a/components/esp_usb_cdc_rom_console/CMakeLists.txt
+++ b/components/esp_usb_cdc_rom_console/CMakeLists.txt
@@ -1,5 +1,6 @@
 idf_build_get_property(target IDF_TARGET)
 
+set(srcs)
 
 if(CONFIG_ESP_CONSOLE_USB_CDC)
     list(APPEND srcs "usb_console.c")