diff --git a/scripts/contrib/convert-overrides.py b/scripts/contrib/convert-overrides.py
index 8cdcf208bc..e4a310d1d6 100755
--- a/scripts/contrib/convert-overrides.py
+++ b/scripts/contrib/convert-overrides.py
@@ -69,11 +69,11 @@ packagevars = packagevars + imagevars
 
 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:
@@ -122,7 +122,7 @@ def processfile(fn):
         pass
 
 ourname = os.path.basename(sys.argv[0])
-ourversion = "0.9.2"
+ourversion = "0.9.3"
 
 if os.path.isfile(sys.argv[1]):
     processfile(sys.argv[1])