diff --git a/src/allmydata/storage/http_client.py b/src/allmydata/storage/http_client.py
index 2db28dc72..f39ed7d1a 100644
--- a/src/allmydata/storage/http_client.py
+++ b/src/allmydata/storage/http_client.py
@@ -406,6 +406,30 @@ def read_share_chunk(
         raise ClientException(response.code)
 
 
+@async_to_deferred
+async def advise_corrupt_share(
+    client: StorageClient,
+    share_type: str,
+    storage_index: bytes,
+    share_number: int,
+    reason: str,
+):
+    assert isinstance(reason, str)
+    url = client.relative_url(
+        "/v1/{}/{}/{}/corrupt".format(
+            share_type, _encode_si(storage_index), share_number
+        )
+    )
+    message = {"reason": reason}
+    response = await client.request("POST", url, message_to_serialize=message)
+    if response.code == http.OK:
+        return
+    else:
+        raise ClientException(
+            response.code,
+        )
+
+
 @define
 class StorageClientImmutables(object):
     """
@@ -579,7 +603,6 @@ class StorageClientImmutables(object):
         else:
             raise ClientException(response.code)
 
-    @inlineCallbacks
     def advise_corrupt_share(
         self,
         storage_index: bytes,
@@ -587,20 +610,9 @@ class StorageClientImmutables(object):
         reason: str,
     ):
         """Indicate a share has been corrupted, with a human-readable message."""
-        assert isinstance(reason, str)
-        url = self._client.relative_url(
-            "/v1/immutable/{}/{}/corrupt".format(
-                _encode_si(storage_index), share_number
-            )
+        return advise_corrupt_share(
+            self._client, "immutable", storage_index, share_number, reason
         )
-        message = {"reason": reason}
-        response = yield self._client.request("POST", url, message_to_serialize=message)
-        if response.code == http.OK:
-            return
-        else:
-            raise ClientException(
-                response.code,
-            )
 
 
 @frozen
@@ -738,3 +750,14 @@ class StorageClientMutables:
             return await _decode_cbor(response, _SCHEMAS["mutable_list_shares"])
         else:
             raise ClientException(response.code)
+
+    def advise_corrupt_share(
+        self,
+        storage_index: bytes,
+        share_number: int,
+        reason: str,
+    ):
+        """Indicate a share has been corrupted, with a human-readable message."""
+        return advise_corrupt_share(
+            self._client, "mutable", storage_index, share_number, reason
+        )
diff --git a/src/allmydata/storage/http_server.py b/src/allmydata/storage/http_server.py
index 748790a72..102a33e90 100644
--- a/src/allmydata/storage/http_server.py
+++ b/src/allmydata/storage/http_server.py
@@ -666,6 +666,26 @@ class HTTPServer(object):
             raise _HTTPError(http.NOT_FOUND)
         return self._send_encoded(request, shares)
 
+    @_authorized_route(
+        _app,
+        set(),
+        "/v1/mutable/<storage_index:storage_index>/<int(signed=False):share_number>/corrupt",
+        methods=["POST"],
+    )
+    def advise_corrupt_share_mutable(
+        self, request, authorization, storage_index, share_number
+    ):
+        """Indicate that given share is corrupt, with a text reason."""
+        # TODO unit test all the paths
+        if not self._storage_server._share_exists(storage_index, share_number):
+            raise _HTTPError(http.NOT_FOUND)
+
+        info = self._read_encoded(request, _SCHEMAS["advise_corrupt_share"])
+        self._storage_server.advise_corrupt_share(
+            b"mutable", storage_index, share_number, info["reason"].encode("utf-8")
+        )
+        return b""
+
 
 @implementer(IStreamServerEndpoint)
 @attr.s
diff --git a/src/allmydata/storage_client.py b/src/allmydata/storage_client.py
index cd489a307..c83527600 100644
--- a/src/allmydata/storage_client.py
+++ b/src/allmydata/storage_client.py
@@ -1185,12 +1185,14 @@ class _HTTPStorageServer(object):
         reason: bytes
     ):
         if share_type == b"immutable":
-            imm_client = StorageClientImmutables(self._http_client)
-            return imm_client.advise_corrupt_share(
-                storage_index, shnum, str(reason, "utf-8", errors="backslashreplace")
-            )
+            client = StorageClientImmutables(self._http_client)
+        elif share_type == b"mutable":
+            client = StorageClientMutables(self._http_client)
         else:
-            raise NotImplementedError()  # future tickets
+            raise ValueError("Unknown share type")
+        return client.advise_corrupt_share(
+            storage_index, shnum, str(reason, "utf-8", errors="backslashreplace")
+        )
 
     @defer.inlineCallbacks
     def slot_readv(self, storage_index, shares, readv):
diff --git a/src/allmydata/test/test_istorageserver.py b/src/allmydata/test/test_istorageserver.py
index a3e75bbac..70543cbf0 100644
--- a/src/allmydata/test/test_istorageserver.py
+++ b/src/allmydata/test/test_istorageserver.py
@@ -1152,5 +1152,4 @@ class HTTPMutableAPIsTests(
     SKIP_TESTS = {
         "test_add_lease_renewal",
         "test_add_new_lease",
-        "test_advise_corrupt_share",
     }