1 files changed, 2 insertions, 1 deletions

diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
index 31f44f7df3..ac981b8346 100644
--- a/bitbake/lib/bb/parse/parse_py/BBHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -65,7 +65,8 @@ IN_PYTHON_EOF = -9999999999999
 
 
 def supports(fn, d):
-    return fn[-3:] == ".bb" or fn[-8:] == ".bbclass" or fn[-4:] == ".inc"
+    """Return True if fn has a supported extension"""
+    return os.path.splitext(fn)[-1] in [".bb", ".bbclass", ".inc"]
 
 def inherit(files, d):
     __inherit_cache = data.getVar('__inherit_cache', d) or []