diff --git a/esphome/components/wifi/wifi_component.cpp b/esphome/components/wifi/wifi_component.cpp
index 68da12c251..0e08e1c025 100644
--- a/esphome/components/wifi/wifi_component.cpp
+++ b/esphome/components/wifi/wifi_component.cpp
@@ -748,28 +748,28 @@ void WiFiComponent::setup_ap_config_() {
   if (this->ap_.get_ssid().empty()) {
     // Build AP SSID from app name without heap allocation
     // WiFi SSID max is 32 bytes, with MAC suffix we keep first 25 + last 7
-    static constexpr size_t max_ssid_len = 32;
-    static constexpr size_t prefix_len = 25;
-    static constexpr size_t suffix_len = 7;
+    static constexpr size_t MAX_SSID_LEN = 32;
+    static constexpr size_t PREFIX_LEN = 25;
+    static constexpr size_t SUFFIX_LEN = 7;
 
     const std::string &app_name = App.get_name();
     const char *name_ptr = app_name.c_str();
     size_t name_len = app_name.length();
 
-    if (name_len <= max_ssid_len) {
+    if (name_len <= MAX_SSID_LEN) {
       // Name fits, use directly
       this->ap_.set_ssid(name_ptr);
     } else {
       // Name too long, need to truncate into stack buffer
-      char ssid_buf[max_ssid_len + 1];
+      char ssid_buf[MAX_SSID_LEN + 1];
       if (App.is_name_add_mac_suffix_enabled()) {
         // Keep first 25 chars and last 7 chars (MAC suffix), remove middle
-        memcpy(ssid_buf, name_ptr, prefix_len);
-        memcpy(ssid_buf + prefix_len, name_ptr + name_len - suffix_len, suffix_len);
+        memcpy(ssid_buf, name_ptr, PREFIX_LEN);
+        memcpy(ssid_buf + PREFIX_LEN, name_ptr + name_len - SUFFIX_LEN, SUFFIX_LEN);
       } else {
-        memcpy(ssid_buf, name_ptr, max_ssid_len);
+        memcpy(ssid_buf, name_ptr, MAX_SSID_LEN);
       }
-      ssid_buf[max_ssid_len] = '\0';
+      ssid_buf[MAX_SSID_LEN] = '\0';
       this->ap_.set_ssid(ssid_buf);
     }
   }