diff --git a/poky/scripts/contrib/convert-overrides.py b/poky/scripts/contrib/convert-overrides.py
index e4a310d..4d41a4c 100755
--- a/poky/scripts/contrib/convert-overrides.py
+++ b/poky/scripts/contrib/convert-overrides.py
@@ -69,15 +69,15 @@
 
 vars_re = {}
 for exp in vars:
-    vars_re[exp] = (re.compile('((^|[\'"\s\-\+])[A-Za-z0-9_\-:${}\.]+)_' + exp), r"\1:" + exp)
+    vars_re[exp] = (re.compile('((^|[#\'"\s\-\+])[A-Za-z0-9_\-:${}\.]+)_' + exp), r"\1:" + exp)
 
 shortvars_re = {}
 for exp in shortvars:
-    shortvars_re[exp] = (re.compile('((^|[\'"\s\-\+])[A-Za-z0-9_\-:${}\.]+)_' + exp + '([\(\'"\s:])'), r"\1:" + exp + r"\3")
+    shortvars_re[exp] = (re.compile('((^|[#\'"\s\-\+])[A-Za-z0-9_\-:${}\.]+)_' + exp + '([\(\'"\s:])'), r"\1:" + exp + r"\3")
 
 package_re = {}
 for exp in packagevars:
-    package_re[exp] = (re.compile('(^|[\'"\s\-\+]+)' + exp + '_' + '([$a-z"\'\s%\[<{\\\*].)'), r"\1" + exp + r":\2")
+    package_re[exp] = (re.compile('(^|[#\'"\s\-\+]+)' + exp + '_' + '([$a-z"\'\s%\[<{\\\*].)'), r"\1" + exp + r":\2")
 
 # Other substitutions to make
 subs = {