diff --git a/libguile/threads.c b/libguile/threads.c
index 0f5cf2ed5..3f40f5d69 100644
--- a/libguile/threads.c
+++ b/libguile/threads.c
@@ -354,7 +354,8 @@ scm_i_pthread_key_t scm_i_thread_key;
    itself in TLS (rather than a pointer to some malloc'd memory) is not
    possible since thread objects may live longer than the actual thread they
    represent.  */
-SCM_THREAD_LOCAL scm_thread *scm_i_current_thread = NULL;
+/* SCM_INTERNAL fixes https://debbugs.gnu.org/60234 */
+SCM_INTERNAL SCM_THREAD_LOCAL scm_thread *scm_i_current_thread = NULL;
 
 #endif /* SCM_HAVE_THREAD_STORAGE_CLASS */