diff --git a/lib/smd/Install.py b/lib/smd/Install.py
index 18986b4477..337f993be5 100644
--- a/lib/smd/Install.py
+++ b/lib/smd/Install.py
@@ -103,6 +103,7 @@ if buildflag:
   subprocess.check_output(cmd,stderr=subprocess.STDOUT,shell=True)
   edir = glob.glob("%s/eigen-eigen-*" % homepath)
   os.rename(edir[0],"%s/%s" % (homepath,homedir))
+  os.remove(tarball)
 
 # create link in lib/smd to Eigen src dir
 
diff --git a/lib/voronoi/Install.py b/lib/voronoi/Install.py
index 9d6c58d273..17bba5e8eb 100644
--- a/lib/voronoi/Install.py
+++ b/lib/voronoi/Install.py
@@ -99,6 +99,7 @@ if grabflag:
     subprocess.check_output(cmd,stderr=subprocess.STDOUT,shell=True)
   cmd = 'cd "%s"; tar -xzvf %s.tar.gz' % (homepath,version)
   subprocess.check_output(cmd,stderr=subprocess.STDOUT,shell=True)
+  os.remove("%s/%s.tar.gz" % (homepath,version))
   if os.path.basename(homedir) != version:
     if os.path.exists(homedir):
       cmd = 'rm -rf "%s"' % homedir