diff --git a/tasks/spec.rake b/tasks/spec.rake
index d0a321bc6..2769ed16c 100644
--- a/tasks/spec.rake
+++ b/tasks/spec.rake
@@ -18,6 +18,7 @@ namespace :spec do
     end
     t.rcov_opts = [
       '--exclude', 'spec',
+      '--exclude', '\\.rvm\\/gems',
       '--exclude', '1\\.8\\/gems',
       '--exclude', '1\\.9\\/gems'
     ]