diff --git a/spacy/lang/ja/__init__.py b/spacy/lang/ja/__init__.py
index 33335a189..127c4c8ac 100644
--- a/spacy/lang/ja/__init__.py
+++ b/spacy/lang/ja/__init__.py
@@ -80,12 +80,12 @@ class JapaneseTokenizer(DummyTokenizer):
             morph = {}
             if dtoken.inf:
                 # it's normal for this to be empty for non-inflecting types
-                morph["inflection"] = dtoken.inf
+                morph["Inflection"] = dtoken.inf
             token.norm_ = dtoken.norm
             if dtoken.reading:
                 # punctuation is its own reading, but we don't want values like
                 # "=" here
-                morph["reading"] = re.sub("[=|]", "_", dtoken.reading)
+                morph["Reading"] = re.sub("[=|]", "_", dtoken.reading)
             token.morph = MorphAnalysis(self.vocab, morph)
         if self.need_subtokens:
             doc.user_data["sub_tokens"] = sub_tokens_list
diff --git a/spacy/tests/lang/ja/test_tokenizer.py b/spacy/tests/lang/ja/test_tokenizer.py
index eb170061a..098884cf0 100644
--- a/spacy/tests/lang/ja/test_tokenizer.py
+++ b/spacy/tests/lang/ja/test_tokenizer.py
@@ -144,9 +144,9 @@ def test_ja_tokenizer_inflections_reading_forms(
     ja_tokenizer, text, inflections, reading_forms
 ):
     tokens = ja_tokenizer(text)
-    test_inflections = [tt.morph.get("inflection") for tt in tokens]
+    test_inflections = [tt.morph.get("Inflection") for tt in tokens]
     assert test_inflections == list(inflections)
-    test_readings = [tt.morph.get("reading") for tt in tokens]
+    test_readings = [tt.morph.get("Reading") for tt in tokens]
     assert test_readings == list(reading_forms)