diff --git a/src/unihan_db/importer.py b/src/unihan_db/importer.py
index a8428e35..35754a7e 100644
--- a/src/unihan_db/importer.py
+++ b/src/unihan_db/importer.py
@@ -108,17 +108,19 @@ def import_char(
         c.kHanYu.append(k)
 
     if "kIRGHanyuDaZidian" in char:
-        for d in char["kIRGHanyuDaZidian"]:
-            k = kIRGHanyuDaZidian()
-            k.locations.append(
+        _khdz_locations: t.List[UnhnLocation] = []
+        for _khdz in char["kIRGHanyuDaZidian"]:
+            assert isinstance(_khdz, dict)
+
+            _khdz_locations.append(
                 UnhnLocation(
-                    volume=d["volume"],
-                    page=d["page"],
-                    character=d["character"],
-                    virtual=d["virtual"],
+                    volume=_khdz["volume"],
+                    page=_khdz["page"],
+                    character=_khdz["character"],
+                    virtual=_khdz["virtual"],
                 )
             )
-            c.kIRGHanyuDaZidian.append(k)
+        c.kIRGHanyuDaZidian.append(kIRGHanyuDaZidian(locations=_khdz_locations))
 
     if "kXHC1983" in char:
         for kxhc in char["kXHC1983"]: