diff --git a/radicale/app/get.py b/radicale/app/get.py
index b1e46540..ac5309f6 100644
--- a/radicale/app/get.py
+++ b/radicale/app/get.py
@@ -121,7 +121,10 @@ class ApplicationPartGet(ApplicationBase):
             elif limited_access:
                 return httputils.NOT_ALLOWED
             else:
-                content_type = xmlutils.OBJECT_MIMETYPES[item.name]
+                if share and share['Conversion'] == "bday":
+                    content_type = xmlutils.MIMETYPES["VCALENDAR"]
+                else:
+                    content_type = xmlutils.OBJECT_MIMETYPES[item.name]
                 content_disposition = ""
             assert item.last_modified
             headers = {
@@ -130,9 +133,12 @@ class ApplicationPartGet(ApplicationBase):
                 "ETag": item.etag}
             if content_disposition:
                 headers["Content-Disposition"] = content_disposition
-            if isinstance(item, storage.BaseCollection) and share and share['Conversion'] == "bday":
-                # convert VCF to ICS
-                answer = item.serialize(vcf_to_ics=True)
+            if share and share['Conversion'] == "bday":
+                if isinstance(item, storage.BaseCollection):
+                    # convert VCF to ICS
+                    answer = item.serialize(vcf_to_ics=True)
+                else:
+                    answer = item.convert_vcf_to_ics().serialize()
             else:
                 answer = item.serialize()
             return client.OK, headers, answer, None
diff --git a/radicale/sharing/__init__.py b/radicale/sharing/__init__.py
index ba2c5f6b..109b292d 100644
--- a/radicale/sharing/__init__.py
+++ b/radicale/sharing/__init__.py
@@ -497,6 +497,9 @@ class BaseSharing:
                     logger.info("sharing/%s: resolved path %r->%r, user %r->%r not enabled by user", "map", path, result['PathMapped'], user, result['Owner'])
                     return {'error': 'map-not-enabled'}
 
+                if result['Conversion'] == "bday" and result['PathMapped'].endswith(".ics"):
+                    result['PathMapped'] = result['PathMapped'].removesuffix(".ics") + ".vcf"
+
                 logger.info("sharing/%s: resolved path %r->%r, user %r->%r, Permissions=%r Conversion=%r", "map", path, result['PathMapped'], user, result['Owner'], result['Permissions'], result['Conversion'])
                 return result