diff --git a/cinrad/io/_radar_struct/standard_data.py b/cinrad/io/_radar_struct/standard_data.py
index 57b9021..cb75aad 100644
--- a/cinrad/io/_radar_struct/standard_data.py
+++ b/cinrad/io/_radar_struct/standard_data.py
@@ -226,8 +226,8 @@
     ('scan_speed', 'f4'),  
     ('log_reso', 'f4'),  
     ('dop_reso', 'f4'),  
-    ('maximum_range', 'i4'),  
-    ('maximum_range2', 'i4'),  
+    ('max_range1', 'i4'),  
+    ('max_range2', 'i4'),  
     ('start_range', 'i4'),  
     ('sample_1', 'i4'),  
     ('sample_2', 'i4'),