diff --git a/ext/-test-/random/loop.c b/ext/-test-/random/loop.c
index 805c8e9122..b789ab1d01 100644
--- a/ext/-test-/random/loop.c
+++ b/ext/-test-/random/loop.c
@@ -13,7 +13,7 @@ static const rb_random_interface_t random_loop_if = {
     RB_RANDOM_INTERFACE_DEFINE_WITH_REAL(loop)
 };
 
-RB_RANDOM_DEFINE_INIT_INT32_FUNC(loop);
+RB_RANDOM_DEFINE_INIT_INT32_FUNC(loop)
 static size_t
 random_loop_memsize(const void *ptr)
 {