diff --git a/debugger.cpp b/debugger.cpp
index 43a7bd1..c439a58 100644
--- a/debugger.cpp
+++ b/debugger.cpp
@@ -511,7 +511,7 @@ void run_bic(console *const cnsl, bus *const b, std::atomic_uint32_t *const stop
 		c->step_a();
 
 		if (tracing)
-			disassemble(c, cnsl, c->getPC(), false);
+			disassemble(c, nullptr, c->getPC(), false);
 
 		c->step_b();
 	}