diff --git a/test/simulator/meson.build b/test/simulator/meson.build
index d65e286..5b8a228 100644
--- a/test/simulator/meson.build
+++ b/test/simulator/meson.build
@@ -2,6 +2,7 @@
     'hei_sim_main.cpp',
     'hei_sim_user_interface.cpp',
     '../../src/isolator/hei_isolator.cpp',
+    '../../src/isolator/hei_isolation_node.cpp',
     '../../src/register/hei_hardware_register.cpp',
     '../../src/util/hei_bit_string.cpp',
 ]