diff --git a/doc/nitpick-exceptions.txt b/doc/nitpick-exceptions.txt
index 8b228c0a0d1a24ed486db12538927ff963fe9712..2fc0d930ee6023f18f9a0a6dbb7ecc6b560a352b 100644
--- a/doc/nitpick-exceptions.txt
+++ b/doc/nitpick-exceptions.txt
@@ -4,4 +4,5 @@ py:class bob.bio.base.database.database.BioDatabase
 py:class bob.bio.base.preprocessor.Preprocessor.Preprocessor
 py:class bob.bio.base.extractor.Extractor.Extractor
 py:class bob.bio.base.database.file.BioFile
-py:class bob.pad.voice.extractor.LBPHistograms
\ No newline at end of file
+py:class bob.pad.voice.extractor.LBPHistograms
+py:exc ValueError
\ No newline at end of file