diff --git a/spacy/lang/es/tag_map.py b/spacy/lang/es/tag_map.py
index 60e6839fa..abc8e9f68 100644
--- a/spacy/lang/es/tag_map.py
+++ b/spacy/lang/es/tag_map.py
@@ -29,7 +29,7 @@ TAG_MAP = {
     "ADP__AdpType=Preppron|Gender=Fem|Number=Sing": {"morph": "AdpType=Preppron|Gender=Fem|Number=Sing", POS: ADP},
     "ADP__AdpType=Preppron|Gender=Masc|Number=Plur": {"morph": "AdpType=Preppron|Gender=Masc|Number=Plur", POS: ADP},
     "ADP__AdpType=Preppron|Gender=Masc|Number=Sing": {"morph": "AdpType=Preppron|Gender=Masc|Number=Sing", POS: ADP},
-    ADP: { POS: ADP},
+    "ADP": { POS: ADP},
     "ADV___": {"morph": "_", POS: ADV},
     "ADV__AdpType=Prep": {"morph": "AdpType=Prep", POS: ADV},
     "ADV__AdpType=Preppron|Gender=Masc|Number=Sing": {"morph": "AdpType=Preppron|Gender=Masc|Number=Sing", POS: ADV},
@@ -135,7 +135,7 @@ TAG_MAP = {
     "DET__Number=Sing|PronType=Ind": {"morph": "Number=Sing|PronType=Ind", POS: DET},
     "DET__PronType=Int": {"morph": "PronType=Int", POS: DET},
     "DET__PronType=Rel": {"morph": "PronType=Rel", POS: DET},
-    DET: { POS: DET},
+    "DET": { POS: DET},
     "INTJ___": {"morph": "_", POS: INTJ},
     "NOUN___": {"morph": "_", POS: NOUN},
     "NOUN__AdvType=Tim": {"morph": "AdvType=Tim", POS: NOUN},