diff --git a/src/pylorax/treebuilder.py b/src/pylorax/treebuilder.py
index 2e7c43eb..42e726f4 100644
--- a/src/pylorax/treebuilder.py
+++ b/src/pylorax/treebuilder.py
@@ -266,7 +266,7 @@ def findkernels(root="/", kdir="boot"):
     # To find possible flavors, awk '/BuildKernel/ { print $4 }' kernel.spec
     flavors = ('debug', 'PAE', 'PAEdebug', 'smp', 'xen', 'lpae', 'tegra')
     kre = re.compile(r"vmlinuz-(?P<version>.+?\.(?P<arch>[a-z0-9_]+)"
-                     r"(\.(?P<flavor>{0}))?)$".format("|".join(flavors)))
+                     r"(.(?P<flavor>{0}))?)$".format("|".join(flavors)))
     kernels = []
     bootfiles = os.listdir(joinpaths(root, kdir))
     for f in bootfiles: