diff --git a/hardware/Rakefile b/hardware/Rakefile
index fdbdac9..1072281 100644
--- a/hardware/Rakefile
+++ b/hardware/Rakefile
@@ -96,8 +96,11 @@ task :sch2pcb do
     sh "gsch2pcb #{target[:sch]} --elements-dir #{File.dirname(__FILE__)}/lib/footprints --skip-m4 --output-name #{target[:name]}"
   end
 end
-CLOBBER.include("*.net")
-CLOBBER.include("*.new.pcb")
+targets.each do |target|
+  CLOBBER.include("#{target[:name]}.net")
+  CLOBBER.include("#{target[:name]}.cmd")
+  CLOBBER.include("#{target[:name]}.new.pcb")
+end
 
 photos = targets.collect{|target| ["#{target[:name]}_layout-top.png","#{target[:name]}_layout-bottom.png"]}.flatten
 desc "render layout"