diff --git a/libfuse/lib/debug.cpp b/libfuse/lib/debug.cpp
index 78b48dc5..9c6b5474 100644
--- a/libfuse/lib/debug.cpp
+++ b/libfuse/lib/debug.cpp
@@ -1107,6 +1107,7 @@ opcode_name(enum fuse_opcode op_)
       "SETATTR",
       "READLINK",
       "SYMLINK",
+      "INVALID",
       "MKNOD",
       "MKDIR",
       "UNLINK",