diff --git a/pym/cl_fill_builder.py b/pym/cl_fill_builder.py
index a2050eb..80517e6 100644
--- a/pym/cl_fill_builder.py
+++ b/pym/cl_fill_builder.py
@@ -71,7 +71,7 @@ class fillVars(object, varsShare):
     def get_cl_builder_kernel_suffix(self):
         kernelname = self.Get('cl_builder_kernel')
         reShortname = re.compile(
-            r"^vmlinuz-((?:\d+\.)*\d)-(x86_64|i686)-(.*)$",re.S)
+            r"^vmlinuz-((?:\d+\.)*\d+)-(x86_64|i686)-(.*)$",re.S)
         res = reShortname.search(kernelname)
         bootPath = path.join(self.Get('cl_builder_path'),'boot')
         if res: