diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h
index f717e3f384..51cd0d9ce3 100644
--- a/include/hw/cxl/cxl_device.h
+++ b/include/hw/cxl/cxl_device.h
@@ -300,7 +300,7 @@ REG64(CXL_MEM_DEV_STS, 0)
 typedef struct CXLError {
     QTAILQ_ENTRY(CXLError) node;
     int type; /* Error code as per FE definition */
-    uint32_t header[32];
+    uint32_t header[CXL_RAS_ERR_HEADER_NUM];
 } CXLError;
 
 typedef QTAILQ_HEAD(, CXLError) CXLErrorList;