diff --git a/libc/system_properties/contexts_split.cpp b/libc/system_properties/contexts_split.cpp
index 3579f55..78bdc64 100644
--- a/libc/system_properties/contexts_split.cpp
+++ b/libc/system_properties/contexts_split.cpp
@@ -281,7 +281,7 @@
   return true;
 }
 
-bool ContextsSplit::Initialize(bool writable, const char* filename, bool* fsetxattr_failed) {
+bool ContextsSplit::Initialize(bool writable, const char* filename, bool* fsetxattr_failed, bool) {
   filename_ = filename;
   if (!InitializeProperties()) {
     return false;