diff --git a/uhdf2/platform/BUILD.gn b/uhdf2/platform/BUILD.gn
index 9d69bd3e052ad9cf0eb1c6124c723bdf587a245e..b699198d9b89c72552644f8875d14e7a3a1e6de7 100755
--- a/uhdf2/platform/BUILD.gn
+++ b/uhdf2/platform/BUILD.gn
@@ -42,6 +42,7 @@ ohos_shared_library("libhdf_platform") {
     "$HDF_FRAMEWORKS/support/platform/src/spi/spi_if_u.c",
     "$HDF_FRAMEWORKS/support/platform/src/timer/timer_if_u.c",
     "$HDF_FRAMEWORKS/support/platform/src/uart/uart_if_u.c",
+    "$HDF_FRAMEWORKS/support/platform/src/watchdog/watchdog_if_u.c",
   ]
 
   include_dirs = [