diff --git a/php.nanorc b/php.nanorc
index 33f6f9a..de27228 100644
--- a/php.nanorc
+++ b/php.nanorc
@@ -37,6 +37,6 @@ color red "(<\?(php)?|\?>)"
 # General HTML
 color red start="\?>" end="<\?(php|=)?"
 # trailing whitespace
-color ,green "[^[:space:]]{1}[[:space:]]+$"
+color ,green "[[:space:]]+$"
 # multi-line comments
 color brightyellow start="/\*" end="\*/"