diff --git a/server.go b/server.go
index 5f0c17a..7eda406 100644
--- a/server.go
+++ b/server.go
@@ -418,7 +418,7 @@ func (c *ServerClient) updateConfig(ctx context.Context, s *Server, body httpbod
 func (c *ServerClient) resizeDisk(ctx context.Context, s *Server) (err error) {
 	diskName := ""
 	if s.Resources.Disk.Name != nil {
-		diskName = s.Resources.Disk.Name
+		diskName = *s.Resources.Disk.Name
 	}
 	body := httpbody{
 		"disk": diskName,