diff --git a/test/Kconfig b/test/Kconfig
index e2ec0994a2e..558a9cd49b4 100644
--- a/test/Kconfig
+++ b/test/Kconfig
@@ -32,7 +32,7 @@ if UT_LIB
 
 config UT_LIB_ASN1
 	bool "Unit test for asn1 compiler and decoder function"
-	depends on SANDBOX
+	depends on SANDBOX && !MBEDTLS_LIB_X509
 	default y
 	imply ASYMMETRIC_KEY_TYPE
 	imply ASYMMETRIC_PUBLIC_KEY_SUBTYPE