diff --git a/pisi/actionsapi/pythonmodules.py b/pisi/actionsapi/pythonmodules.py
index cb9325e9..0babdac6 100644
--- a/pisi/actionsapi/pythonmodules.py
+++ b/pisi/actionsapi/pythonmodules.py
@@ -50,7 +50,7 @@ def compile(parameters = ''):
 
 def install(parameters = ''):
     '''does python setup.py install'''
-    if system('python setup.py install --root=%s --install-lib=/usr/lib/site-python --no-compile -O0 %s' % (get.installDIR(), parameters)):
+    if system('python setup.py install --root=%s --no-compile -O0 %s' % (get.installDIR(), parameters)):
         raise InstallError, _('Install failed.')
 
     DDOCS = 'CHANGELOG COPYRIGHT KNOWN_BUGS MAINTAINERS PKG-INFO \
diff --git a/pisi/archive.py b/pisi/archive.py
index a0b5db48..c2a24ef2 100644
--- a/pisi/archive.py
+++ b/pisi/archive.py
@@ -114,7 +114,8 @@ class ArchiveTar(ArchiveBase):
         elif self.type == 'tarlzma':
             rmode = 'r:'
             self.file_path = self.file_path.rstrip(ctx.const.lzma_suffix)
-            ret, out, err = util.run_batch("lzma -k -f -d %s%s" % (self.file_path,ctx.const.lzma_suffix))
+            ret, out, err = util.run_batch("lzma d %s %s" % (self.file_path + ctx.const.lzma_suffix,
+                                                             self.file_path))
             if ret != 0:
                 raise LzmaRuntimeError(err)
         else:
@@ -189,9 +190,9 @@ class ArchiveTar(ArchiveBase):
         if self.tar.mode == 'wb' and self.type == 'tarlzma':
             batch = None
             if ctx.config.values.build.compressionlevel:
-                batch = "lzma -%s -z %s" % (ctx.config.values.build.compressionlevel, self.file_path)
+                batch = "lzmash -%s %s" % (ctx.config.values.build.compressionlevel, self.file_path)
             else:
-                batch = "lzma -z %s" % self.file_path
+                batch = "lzmash %s" % self.file_path
 
             ret, out, err = util.run_batch(batch)
             if ret != 0: