diff --git a/spacy/glossary.py b/spacy/glossary.py
index 0dc075ca7..e45704fc5 100644
--- a/spacy/glossary.py
+++ b/spacy/glossary.py
@@ -95,6 +95,7 @@ GLOSSARY = {
     "XX": "unknown",
     "BES": 'auxiliary "be"',
     "HVS": 'forms of "have"',
+    "_SP": "whitespace",
     # POS Tags (German)
     # TIGER Treebank
     # http://www.ims.uni-stuttgart.de/forschung/ressourcen/korpora/TIGERCorpus/annotation/tiger_introduction.pdf