diff --git a/daemon/open.c b/daemon/open.c
index c85312b..cf66668 100644
--- a/daemon/open.c
+++ b/daemon/open.c
@@ -47,7 +47,7 @@ static int create_open_state(
 
     InitializeSRWLock(&state->path.lock);
     if (FAILED(StringCchCopyA(state->path.path, NFS41_MAX_PATH_LEN, path))) {
-        status = ERROR_BUFFER_OVERFLOW;
+        status = ERROR_FILENAME_EXCED_RANGE;
         goto out_free;
     }
     state->path.len = (unsigned short)strlen(state->path.path);
diff --git a/daemon/readdir.c b/daemon/readdir.c
index 5bc06c0..b632d8b 100644
--- a/daemon/readdir.c
+++ b/daemon/readdir.c
@@ -216,7 +216,7 @@ static int format_abs_path(
     abs_path_copy(path_out, path);
     if (FAILED(StringCchPrintfA(path_out->path + path_out->len,
         NFS41_MAX_PATH_LEN - path_out->len, "\\%s", name->name))) {
-        status = ERROR_BUFFER_OVERFLOW;
+        status = ERROR_FILENAME_EXCED_RANGE;
         goto out;
     }
     path_out->len += name->len + 1;
diff --git a/daemon/util.c b/daemon/util.c
index ca955fe..a1cabed 100644
--- a/daemon/util.c
+++ b/daemon/util.c
@@ -382,7 +382,7 @@ int create_silly_rename(
     int status = NO_ERROR, i;
 
     if (path->len + extra_len >= NFS41_MAX_PATH_LEN) {
-        status = ERROR_BUFFER_OVERFLOW;
+        status = ERROR_FILENAME_EXCED_RANGE;
         goto out;
     }
 
diff --git a/sys/nfs41_driver.c b/sys/nfs41_driver.c
index 63e34ca..9051d5b 100644
--- a/sys/nfs41_driver.c
+++ b/sys/nfs41_driver.c
@@ -4036,6 +4036,7 @@ NTSTATUS map_querydir_errors(
     case ERROR_INVALID_PARAMETER:   return STATUS_INVALID_PARAMETER;
     case ERROR_NO_MORE_FILES:       return STATUS_NO_MORE_FILES;
     case ERROR_OUTOFMEMORY:         return STATUS_INSUFFICIENT_RESOURCES;
+    case ERROR_FILENAME_EXCED_RANGE: return STATUS_NAME_TOO_LONG;
     default:
         print_error("failed to map windows error %d to NTSTATUS; "
             "defaulting to STATUS_INVALID_NETWORK_RESPONSE\n", status);