diff --git a/examples/protocols/https_x509_bundle/sdkconfig.ci.default_crt_bundle b/examples/protocols/https_x509_bundle/sdkconfig.ci.default_crt_bundle
index d0e1451c3e..59a0ecd5c5 100644
--- a/examples/protocols/https_x509_bundle/sdkconfig.ci.default_crt_bundle
+++ b/examples/protocols/https_x509_bundle/sdkconfig.ci.default_crt_bundle
@@ -1,4 +1,5 @@
 CONFIG_IDF_TARGET="esp32"
+CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_CROSS_SIGNED_VERIFY=y
 CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=y
 
 # QEMU-Related configurations