diff --git a/schema/bom-1.6.schema.json b/schema/bom-1.6.schema.json
index e2547587..11863f12 100644
--- a/schema/bom-1.6.schema.json
+++ b/schema/bom-1.6.schema.json
@@ -3880,7 +3880,7 @@
             "primitive": {
               "type": "string",
               "title": "primitive",
-              "description": "Cryptographic building blocks used in higher-level cryptographic systems and protocols. Primitives represent different cryptographic routines: deterministic random bit generators (drbg, e.g. CTR_DRBG from NIST SP800-90A-r1), message authentication codes (mac, e.g. HMAC-SHA-256), blockciphers (e.g. AES), streamciphers (e.g. Salsa20), signatures (e.g. ECDSA), hash functions (e.g. SHA-256), public-key encryption schemes (pke, e.g. RSA), extended output functions (xof, e.g. SHAKE256), key derivation functions (e.g. pbkdf2), key agreement algoorithms (e.g. ECDH), key encapsulation mechanisms (e.g. ML-KEM) and authenticated encryption (ae, e.g. AES-GCM).",
+              "description": "Cryptographic building blocks used in higher-level cryptographic systems and protocols. Primitives represent different cryptographic routines: deterministic random bit generators (drbg, e.g. CTR_DRBG from NIST SP800-90A-r1), message authentication codes (mac, e.g. HMAC-SHA-256), blockciphers (e.g. AES), streamciphers (e.g. Salsa20), signatures (e.g. ECDSA), hash functions (e.g. SHA-256), public-key encryption schemes (pke, e.g. RSA), extended output functions (xof, e.g. SHAKE256), key derivation functions (e.g. pbkdf2), key agreement algoorithms (e.g. ECDH), key encapsulation mechanisms (e.g. ML-KEM), authenticated encryption (ae, e.g. AES-GCM) and the combination of multiple algorithms (combiner, e.g. SP800-56Cr2).",
               "enum": [
                 "drbg",
                 "mac",
@@ -3894,6 +3894,7 @@
                 "keyagree",
                 "kem",
                 "ae",
+                "combiner",
                 "other",
                 "unknown"
               ]