diff --git a/internal/ossl/thread_setup_unix.c b/internal/ossl/thread_setup_unix.c
index deac8ff..8cda87e 100644
--- a/internal/ossl/thread_setup_unix.c
+++ b/internal/ossl/thread_setup_unix.c
@@ -21,7 +21,7 @@ static void locking_function(int mode, int n, const char *file, int line)
         pthread_mutex_unlock(&mutex_buf[n]);
 }
 
-static void thread_id(GO_CRYPTO_THREADID_PTR tid)
+static void thread_id(CRYPTO_THREADID_PTR tid)
 {
     CRYPTO_THREADID_set_numeric(tid, (unsigned long)pthread_self());