diff --git a/syntax/nanorc.nanorc b/syntax/nanorc.nanorc
index 3ed173f6..b55979ed 100644
--- a/syntax/nanorc.nanorc
+++ b/syntax/nanorc.nanorc
@@ -1,6 +1,6 @@
 ## Syntax highlighting for nanorc files.
 
-syntax nanorc "\.?nanorc(\.in)?$"
+syntax nanorc "[/.]nanorc(\.in)?$"
 comment "#"
 
 # Everything that does not get recolored is invalid