1 files changed, 4 insertions, 1 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 3020cadc56..e7fd0c82ec 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -1384,6 +1384,7 @@ static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
     ErlNifBinary key;
     struct hmac_context* obj;
     const EVP_MD *md;
+    ERL_NIF_TERM ret;
     
     CHECK_OSE_CRYPTO();
 
@@ -1415,7 +1416,9 @@ static ERL_NIF_TERM hmac_init(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
     HMAC_CTX_init(&obj->ctx);
     HMAC_Init(&obj->ctx, key.data, key.size, md);
 
-    return enif_make_resource(env, obj);
+    ret = enif_make_resource(env, obj);
+    enif_release_resource(obj);
+    return ret;
 }
 
 static ERL_NIF_TERM hmac_update(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])