diff --git a/source/Plugins/ScriptInterpreter/Python/lldb-python.h b/source/Plugins/ScriptInterpreter/Python/lldb-python.h
index 9b4a1dd..0c28179 100644
--- a/source/Plugins/ScriptInterpreter/Python/lldb-python.h
+++ b/source/Plugins/ScriptInterpreter/Python/lldb-python.h
@@ -60,6 +60,12 @@
 // with a version of Python we don't support.
 static_assert(PY_VERSION_HEX >= LLDB_MINIMUM_PYTHON_VERSION,
               "LLDB requires at least Python 3.8");
+
+// PyMemoryView_FromMemory is part of stable ABI but the flag constants are not.
+// See https://github.com/python/cpython/issues/98680
+#ifndef PyBUF_READ
+#define PyBUF_READ 0x100
+#endif
 #endif
 
 #endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_LLDB_PYTHON_H