1 files changed, 2 insertions, 2 deletions
diff --git a/thread.c b/thread.c
index e88ed87306..d4f33a2e42 100644
--- a/thread.c
+++ b/thread.c
@@ -3325,7 +3325,7 @@ VALUE
 rb_thread_local_aset(VALUE thread, ID id, VALUE val)
 {
     if (OBJ_FROZEN(thread)) {
-	rb_error_frozen("thread locals");
+	rb_frozen_error_raise(thread, "can't modify frozen thread locals");
     }
 
     return threadptr_local_aset(rb_thread_ptr(thread), id, val);
@@ -3402,7 +3402,7 @@ rb_thread_variable_set(VALUE thread, VALUE id, VALUE val)
     VALUE locals;
 
     if (OBJ_FROZEN(thread)) {
-	rb_error_frozen("thread locals");
+	rb_frozen_error_raise(thread, "can't modify frozen thread locals");
     }
 
     locals = rb_ivar_get(thread, id_locals);