diff --git a/lib/itamae/ext/specinfra.rb b/lib/itamae/ext/specinfra.rb
index 97e71cd0..4251bf2d 100644
--- a/lib/itamae/ext/specinfra.rb
+++ b/lib/itamae/ext/specinfra.rb
@@ -23,7 +23,7 @@ def receive_file(from, to = nil)
         if to
           send_file(from, to)
         else
-          run_command("cat #{from}").stdout
+          run_command(["cat", from]).stdout
         end
       end
     end