diff --git a/src/pylorax/__init__.py b/src/pylorax/__init__.py
index daec0db3..abe2acbe 100644
--- a/src/pylorax/__init__.py
+++ b/src/pylorax/__init__.py
@@ -78,10 +78,7 @@ LIB32 = "lib"
 LIB64 = "lib64"
 
 
-# kernel types
-K_NORMAL = 0
-K_PAE = 1
-K_XEN = 1
+
 
 
 class Lorax(BaseLoraxClass):
diff --git a/src/pylorax/constants.py b/src/pylorax/constants.py
index 30c5402b..8de07789 100644
--- a/src/pylorax/constants.py
+++ b/src/pylorax/constants.py
@@ -23,7 +23,6 @@ import logging
 logger = logging.getLogger("pylorax")
 
 import os
-
 from sysutils import joinpaths
 
 
@@ -66,3 +65,9 @@ class LoraxRequiredCommands(dict):
                 missing.append(cmd)
 
         return missing
+
+
+# kernel types
+K_NORMAL = 0
+K_PAE = 1
+K_XEN = 1
diff --git a/src/pylorax/installtree.py b/src/pylorax/installtree.py
index d5cf45de..13eae5d5 100644
--- a/src/pylorax/installtree.py
+++ b/src/pylorax/installtree.py
@@ -37,12 +37,6 @@ import constants
 from sysutils import *
 
 
-# kernel types
-K_NORMAL = 0
-K_PAE = 1
-K_XEN = 1
-
-
 class LoraxInstallTree(BaseLoraxClass):
 
     def __init__(self, yum, basearch, libdir):
@@ -540,11 +534,11 @@ class LoraxInstallTree(BaseLoraxClass):
         for fname in os.listdir(kerneldir):
             m = kpattern.match(fname)
             if m:
-                type = K_NORMAL
+                type = constants.K_NORMAL
                 if m.group("pae"):
-                    type = K_PAE
+                    type = constants.K_PAE
                 elif m.group("xen"):
-                    type = K_XEN
+                    type = constants.K_XEN
 
                 kernels.append(DataHolder(fname=fname,
                                           fpath=joinpaths(kerneldir, fname),
diff --git a/src/pylorax/outputtree.py b/src/pylorax/outputtree.py
index 7683c0b6..03bae4f9 100644
--- a/src/pylorax/outputtree.py
+++ b/src/pylorax/outputtree.py
@@ -30,6 +30,7 @@ import subprocess
 
 from base import BaseLoraxClass, DataHolder
 from sysutils import *
+import constants
 
 
 class LoraxOutputTree(BaseLoraxClass):
@@ -69,9 +70,9 @@ class LoraxOutputTree(BaseLoraxClass):
 
         for n, kernel in enumerate(self.installtree.kernels):
             suffix = ""
-            if kernel.type == K_PAE:
+            if kernel.type == constants.K_PAE:
                 suffix = "-PAE"
-            elif kernel.type == K_XEN:
+            elif kernel.type == constants.K_XEN:
                 suffix = "-XEN"
 
             kname = "vmlinuz{0}".format(suffix)