1 files changed, 1 insertions, 1 deletions
diff --git a/ractor.c b/ractor.c
index bf19aa62d3..daf6f38f4d 100644
--- a/ractor.c
+++ b/ractor.c
@@ -1922,7 +1922,7 @@ rb_ractor_terminate_interrupt_main_thread(rb_ractor_t *r)
             rb_threadptr_interrupt(main_th);
         }
         else {
-            RUBY_DEBUG_LOG("killed (%p)", main_th);
+            RUBY_DEBUG_LOG("killed (%p)", (void *)main_th);
         }
     }
 }