diff --git a/docs/source/algorithms/PDDetermineCharacterizations-v1.rst b/docs/source/algorithms/PDDetermineCharacterizations-v1.rst
index 2cf1816b18877c1db1d3ed8c2a04a323a22e784b..d34d55bc56009072b62e9a89f0343b7cf8d12140 100644
--- a/docs/source/algorithms/PDDetermineCharacterizations-v1.rst
+++ b/docs/source/algorithms/PDDetermineCharacterizations-v1.rst
@@ -46,7 +46,7 @@ frequency           double       0
 wavelength          double       0
 bank                integer      1
 vanadium            integerarray [0]     NormRun
-vanadium_bankground integerarray [0]     NormBackRun
+vanadium_background integerarray [0]     NormBackRun
 container           integerarray [0]     BackRun
 empty_environment   integerarray [0]     EmptyEnv
 empty_instrument    integerarray [0]     EmptyInstr