diff --git a/tests/emu/pcu_emu.cpp b/tests/emu/pcu_emu.cpp
index b08c31d..c1ccf07 100644
--- a/tests/emu/pcu_emu.cpp
+++ b/tests/emu/pcu_emu.cpp
@@ -170,6 +170,7 @@
 extern "C" {
 void l1if_pdch_req() { abort(); }
 void l1if_connect_pdch() { abort(); }
+void l1if_disconnect_pdch() { abort(); }
 void l1if_close_pdch() { abort(); }
 void l1if_open_pdch() { abort(); }
 }