diff --git a/scripts/tracetool b/scripts/tracetool
index 65bd0a1..d5e5591 100755
--- a/scripts/tracetool
+++ b/scripts/tracetool
@@ -161,6 +161,12 @@ linetoc_nop()
      return
  }

+linetod_nop()
+{
+    # Used when "disabled" events are processed
+    return
+}
+
  linetoc_end_nop()
  {
      return