diff --git a/tools/cert_create/src/cert.c b/tools/cert_create/src/cert.c
index 153f555..4b35d73 100644
--- a/tools/cert_create/src/cert.c
+++ b/tools/cert_create/src/cert.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -24,6 +24,9 @@
 #define SERIAL_RAND_BITS	64
 #define RSA_SALT_LEN		32
 
+cert_t *certs;
+unsigned int num_certs;
+
 int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
 {
 	BIGNUM *btmp;
@@ -220,6 +223,28 @@
 	cert_t *cert;
 	unsigned int i;
 
+	certs = malloc((num_def_certs * sizeof(def_certs[0]))
+#ifdef PDEF_CERTS
+		       + (num_pdef_certs * sizeof(pdef_certs[0]))
+#endif
+		       );
+	if (certs == NULL) {
+		ERROR("%s:%d Failed to allocate memory.\n", __func__, __LINE__);
+		return 1;
+	}
+
+	memcpy(&certs[0], &def_certs[0],
+	       (num_def_certs * sizeof(def_certs[0])));
+
+#ifdef PDEF_CERTS
+	memcpy(&certs[num_def_certs], &pdef_certs[0],
+	       (num_pdef_certs * sizeof(pdef_certs[0])));
+
+	num_certs = num_def_certs + num_pdef_certs;
+#else
+	num_certs = num_def_certs;
+#endif
+
 	for (i = 0; i < num_certs; i++) {
 		cert = &certs[i];
 		cmd_opt.long_opt.name = cert->opt;
diff --git a/tools/cert_create/src/ext.c b/tools/cert_create/src/ext.c
index 65dd3e5..2882123 100644
--- a/tools/cert_create/src/ext.c
+++ b/tools/cert_create/src/ext.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -13,8 +13,12 @@
 #include <openssl/x509v3.h>
 
 #include "cmd_opt.h"
+#include "debug.h"
 #include "ext.h"
 
+ext_t *extensions;
+unsigned int num_extensions;
+
 DECLARE_ASN1_ITEM(ASN1_INTEGER)
 DECLARE_ASN1_ITEM(X509_ALGOR)
 DECLARE_ASN1_ITEM(ASN1_OCTET_STRING)
@@ -51,6 +55,26 @@
 	int nid, ret;
 	unsigned int i;
 
+	extensions = malloc((num_def_extensions * sizeof(def_extensions[0]))
+#ifdef PDEF_EXTS
+			    + (num_pdef_extensions * sizeof(pdef_extensions[0]))
+#endif
+			    );
+	if (extensions == NULL) {
+		ERROR("%s:%d Failed to allocate memory.\n", __func__, __LINE__);
+		return 1;
+	}
+
+	memcpy(&extensions[0], &def_extensions[0],
+	       (num_def_extensions * sizeof(def_extensions[0])));
+#ifdef PDEF_EXTS
+	memcpy(&extensions[num_def_extensions], &pdef_extensions[0],
+		(num_pdef_extensions * sizeof(pdef_extensions[0])));
+	num_extensions = num_def_extensions + num_pdef_extensions;
+#else
+	num_extensions = num_def_extensions;
+#endif
+
 	for (i = 0; i < num_extensions; i++) {
 		ext = &extensions[i];
 		/* Register command line option */
diff --git a/tools/cert_create/src/key.c b/tools/cert_create/src/key.c
index fcc9d53..6435975 100644
--- a/tools/cert_create/src/key.c
+++ b/tools/cert_create/src/key.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -21,6 +21,9 @@
 
 #define MAX_FILENAME_LEN		1024
 
+key_t *keys;
+unsigned int num_keys;
+
 /*
  * Create a new key container
  */
@@ -182,6 +185,28 @@
 	key_t *key;
 	unsigned int i;
 
+	keys = malloc((num_def_keys * sizeof(def_keys[0]))
+#ifdef PDEF_KEYS
+		      + (num_pdef_keys * sizeof(pdef_keys[0]))
+#endif
+		      );
+
+	if (keys == NULL) {
+		ERROR("%s:%d Failed to allocate memory.\n", __func__, __LINE__);
+		return 1;
+	}
+
+	memcpy(&keys[0], &def_keys[0], (num_def_keys * sizeof(def_keys[0])));
+#ifdef PDEF_KEYS
+	memcpy(&keys[num_def_keys], &pdef_keys[0],
+		(num_pdef_keys * sizeof(pdef_keys[0])));
+
+	num_keys = num_def_keys + num_pdef_keys;
+#else
+	num_keys = num_def_keys;
+#endif
+		   ;
+
 	for (i = 0; i < num_keys; i++) {
 		key = &keys[i];
 		if (key->opt != NULL) {