From 094e0440c68e52c0eb74664e4174bfc85fb89dfb Mon Sep 17 00:00:00 2001
From: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
Date: Mon, 6 Apr 2026 20:30:36 -0400
Subject: [PATCH] [config] Fix unfilled placeholder in dimensions() error
 message (#15498)

---
 esphome/config_validation.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/config_validation.py b/esphome/config_validation.py
index 09f460f46b..c6b67e9f35 100644
--- a/esphome/config_validation.py
+++ b/esphome/config_validation.py
@@ -1667,7 +1667,7 @@ def dimensions(value):
     match = re.match(r"\s*([0-9]+)\s*[xX]\s*([0-9]+)\s*", value)
     if not match:
         raise Invalid(
-            "Invalid value '{}' for dimensions. Only WIDTHxHEIGHT is allowed."
+            f"Invalid value '{value}' for dimensions. Only WIDTHxHEIGHT is allowed."
         )
     return dimensions([match.group(1), match.group(2)])