diff --git a/imap_processing/lo/l0/decompression_tables/decompression_tables.py b/imap_processing/lo/l0/decompression_tables/decompression_tables.py
index 2de39ce2f..28ed5a54c 100644
--- a/imap_processing/lo/l0/decompression_tables/decompression_tables.py
+++ b/imap_processing/lo/l0/decompression_tables/decompression_tables.py
@@ -63,7 +63,7 @@
     (1, 0): VariableFields(True, True, True, False, False, False),
     (2, 0): VariableFields(True, True, False, False, False, True),
     (3, 0): VariableFields(True, False, False, False, False, False),
-    (4, 1): VariableFields(True, False, False, False, False, True),
+    (4, 1): VariableFields(True, False, True, False, False, True),
     (4, 0): VariableFields(True, False, False, True, False, False),
     (5, 0): VariableFields(True, False, True, False, False, False),
     (6, 1): VariableFields(True, False, False, False, False, True),