diff --git a/vm.c b/vm.c
index f67bd30bdd..325ab9935e 100644
--- a/vm.c
+++ b/vm.c
@@ -422,7 +422,7 @@ jit_exec(rb_execution_context_t *ec)
 }
 #else
 static inline rb_jit_func_t jit_compile(rb_execution_context_t *ec) { return 0; }
-static inline VALUE jit_exec(rb_execution_context_t *ec) { return Qundef; }
+RBIMPL_ATTR_MAYBE_UNUSED() static inline VALUE jit_exec(rb_execution_context_t *ec) { return Qundef; }
 #endif
 
 #include "vm_insnhelper.c"
@@ -2336,9 +2336,7 @@ vm_exec_bottom_main(void *context)
     struct rb_vm_exec_context *ctx = (struct rb_vm_exec_context *)context;
 
     ctx->state = TAG_NONE;
-    if (UNDEF_P(ctx->result = jit_exec(ctx->ec))) {
-        ctx->result = vm_exec_core(ctx->ec);
-    }
+    ctx->result = vm_exec_core(ctx->ec);
     vm_exec_enter_vm_loop(ctx->ec, ctx, ctx->tag, true);
 }