diff --git a/src/arm.cpp b/src/arm.cpp
index 14baab01e2..885a320594 100644
--- a/src/arm.cpp
+++ b/src/arm.cpp
@@ -1931,7 +1931,7 @@ return_(Context* c)
 void
 trap(Context* c)
 {
-  emit(c, bkpt());
+  emit(c, bkpt(0));
 }
 
 void