diff --git a/tests/system_properties_test.cpp b/tests/system_properties_test.cpp
index dff92ea..0b7f5ae 100644
--- a/tests/system_properties_test.cpp
+++ b/tests/system_properties_test.cpp
@@ -593,7 +593,7 @@
   ASSERT_TRUE(system_properties.valid());
 
   auto name = "ro.super_long_property"s;
-  auto value = std::string(256 * 1024 + 1, 'x');
+  auto value = std::string(128 * 1024 + 1, 'x');
   ASSERT_NE(0, system_properties.Add(name.c_str(), name.size(), value.c_str(), value.size()));
 
 #else   // __BIONIC__