diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index d50148abb4..4ed282b726 100644
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -2278,7 +2278,7 @@ compute_cc(resquery_t *query, unsigned char *cookie, size_t len) {
 	unsigned int secret_len = ISC_SHA1_DIGESTLENGTH;
 #elif defined(HMAC_SHA256_CC)
 	isc_md_type_t type = ISC_MD_SHA256;
-	unsigned int secret_len = ISC_SHA256_DIGESTLENGHT;
+	unsigned int secret_len = ISC_SHA256_DIGESTLENGTH;
 #endif
 
 	INSIST(len >= 8U);