diff --git a/src/include/openssl/x509.h b/src/include/openssl/x509.h
index 7f42593ad..aa219b1a3 100644
--- a/src/include/openssl/x509.h
+++ b/src/include/openssl/x509.h
@@ -3088,17 +3088,6 @@ OPENSSL_EXPORT int X509V3_add_standard_extensions(void);
 #define X509_STORE_get1_certs X509_STORE_CTX_get1_certs
 #define X509_STORE_get1_crls X509_STORE_CTX_get1_crls
 
-// The following constants are legacy aliases for |X509v3_KU_*|.
-#define KU_DIGITAL_SIGNATURE X509v3_KU_DIGITAL_SIGNATURE
-#define KU_NON_REPUDIATION X509v3_KU_NON_REPUDIATION
-#define KU_KEY_ENCIPHERMENT X509v3_KU_KEY_ENCIPHERMENT
-#define KU_DATA_ENCIPHERMENT X509v3_KU_DATA_ENCIPHERMENT
-#define KU_KEY_AGREEMENT X509v3_KU_KEY_AGREEMENT
-#define KU_KEY_CERT_SIGN X509v3_KU_KEY_CERT_SIGN
-#define KU_CRL_SIGN X509v3_KU_CRL_SIGN
-#define KU_ENCIPHER_ONLY X509v3_KU_ENCIPHER_ONLY
-#define KU_DECIPHER_ONLY X509v3_KU_DECIPHER_ONLY
-
 
 // Private structures.