diff --git a/BUILD.gn b/BUILD.gn
index 23188701998cdfd212b3a119ed7b0a6a571ccc32..4c3c979019aecc20c9f3c2e8f4853fcf1957f44d 100755
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -47,6 +47,10 @@ if (defined(ohos_lite)) {
   config("mbedtls_config") {
     include_dirs = MBEDTLS_INLCUDE_DIRS
     include_dirs += [ "//third_party/bounds_checking_function/include" ]
+    cflags = [
+      "-fstack-protector-strong",
+      "-D_FORTIFY_SOURCE=2 -O2",
+    ]
     if (ohos_kernel_type == "liteos_m") {
       defines += [
         "__unix__",