diff --git a/dll/win32/bcrypt/bcrypt_main.c b/dll/win32/bcrypt/bcrypt_main.c
index 042e906bb7d..56234006bcd 100644
--- a/dll/win32/bcrypt/bcrypt_main.c
+++ b/dll/win32/bcrypt/bcrypt_main.c
@@ -267,7 +267,8 @@ enum alg_id
     ALG_ID_SHA256,
     ALG_ID_SHA384,
     ALG_ID_SHA512,
-    ALG_ID_ECDSA_P256
+    ALG_ID_ECDSA_P256,
+    ALG_ID_ECDSA_P384,
 };
 
 static const struct {
@@ -280,7 +281,8 @@ static const struct {
     /* ALG_ID_SHA256 */ { 32, BCRYPT_SHA256_ALGORITHM },
     /* ALG_ID_SHA384 */ { 48, BCRYPT_SHA384_ALGORITHM },
     /* ALG_ID_SHA512 */ { 64, BCRYPT_SHA512_ALGORITHM },
-    /* ALG_ID_ECDSA_P256 */ { 0, BCRYPT_ECDSA_P256_ALGORITHM }
+    /* ALG_ID_ECDSA_P256 */ { 0, BCRYPT_ECDSA_P256_ALGORITHM },
+    /* ALG_ID_ECDSA_P384 */ { 0, BCRYPT_ECDSA_P384_ALGORITHM },
 };
 
 struct algorithm
@@ -354,6 +356,7 @@ NTSTATUS WINAPI BCryptOpenAlgorithmProvider( BCRYPT_ALG_HANDLE *handle, LPCWSTR
     else if (!strcmpW( id, BCRYPT_SHA384_ALGORITHM )) alg_id = ALG_ID_SHA384;
     else if (!strcmpW( id, BCRYPT_SHA512_ALGORITHM )) alg_id = ALG_ID_SHA512;
     else if (!strcmpW( id, BCRYPT_ECDSA_P256_ALGORITHM )) alg_id = ALG_ID_ECDSA_P256;
+    else if (!strcmpW( id, BCRYPT_ECDSA_P384_ALGORITHM )) alg_id = ALG_ID_ECDSA_P384;
     else
     {
         FIXME( "algorithm %s not supported\n", debugstr_w(id) );