diff --git a/ext/socket/raddrinfo.c b/ext/socket/raddrinfo.c
index 67bc9c2a97..dcabb2022e 100644
--- a/ext/socket/raddrinfo.c
+++ b/ext/socket/raddrinfo.c
@@ -726,10 +726,8 @@ static void
 addrinfo_mark(void *ptr)
 {
     rb_addrinfo_t *rai = ptr;
-    if (rai) {
-        rb_gc_mark(rai->inspectname);
-        rb_gc_mark(rai->canonname);
-    }
+    rb_gc_mark(rai->inspectname);
+    rb_gc_mark(rai->canonname);
 }
 
 #define addrinfo_free RUBY_TYPED_DEFAULT_FREE