diff --git a/include/openssl/self_test.h b/include/openssl/self_test.h
index 5bf00b1e77..93a395bbbc 100644
--- a/include/openssl/self_test.h
+++ b/include/openssl/self_test.h
@@ -50,6 +50,7 @@ extern "C" {
 # define OSSL_SELF_TEST_DESC_PCT_RSA_PKCS1  "RSA"
 # define OSSL_SELF_TEST_DESC_PCT_ECDSA      "ECDSA"
 # define OSSL_SELF_TEST_DESC_PCT_EDDSA      "EDDSA"
+# define OSSL_SELF_TEST_DESC_PCT_DH         "DH"
 # define OSSL_SELF_TEST_DESC_PCT_DSA        "DSA"
 # define OSSL_SELF_TEST_DESC_PCT_ML_DSA     "ML-DSA"
 # define OSSL_SELF_TEST_DESC_PCT_ML_KEM     "ML-KEM"