diff --git a/libc/system_properties/system_properties.cpp b/libc/system_properties/system_properties.cpp
index 93184a3..f67fc4d 100644
--- a/libc/system_properties/system_properties.cpp
+++ b/libc/system_properties/system_properties.cpp
@@ -285,11 +285,19 @@
   }
   contexts = nullptr;
   if (is_dir(property_filename)) {
-    new (&contexts_union.contexts_split) ContextsSplit();
-    if (!contexts_union.contexts_split.Initialize(false)) {
-      return -1;
+    if (access("/dev/__properties__/property_info", R_OK) == 0) {
+      new (&contexts_union.contexts_serialized) ContextsSerialized();
+      if (!contexts_union.contexts_serialized.Initialize(false)) {
+        return -1;
+      }
+      contexts = &contexts_union.contexts_serialized;
+    } else {
+      new (&contexts_union.contexts_split) ContextsSplit();
+      if (!contexts_union.contexts_split.Initialize(false)) {
+        return -1;
+      }
+      contexts = &contexts_union.contexts_split;
     }
-    contexts = &contexts_union.contexts_split;
   } else {
     new (&contexts_union.contexts_pre_split) ContextsPreSplit();
     if (!contexts_union.contexts_pre_split.Initialize(false)) {
@@ -316,9 +324,9 @@
   }
   // We set this unconditionally as we want tests to continue on regardless of if this failed
   // and property_service will abort on an error condition, so no harm done.
-  new (&contexts_union.contexts_split) ContextsSplit;
-  contexts = &contexts_union.contexts_split;
-  if (!contexts_union.contexts_split.Initialize(true)) {
+  new (&contexts_union.contexts_serialized) ContextsSerialized;
+  contexts = &contexts_union.contexts_serialized;
+  if (!contexts_union.contexts_serialized.Initialize(true)) {
     return -1;
   }
   return 0;