diff --git a/src/encString.cpp b/src/encString.cpp
index 2cf06d0..a009c75 100644
--- a/src/encString.cpp
+++ b/src/encString.cpp
@@ -1,7 +1,7 @@
 #include "encString.hpp"
 #include <base64.h>
 #include <libb64/cdecode.h>
-#include <cutils.hpp>
+#include <ACPU.hpp>
 
 bool isBase64(const char *p)
 {
@@ -30,8 +30,8 @@ void strEncode(String &str)
     unsigned int enciphidx = 0;
     char c;
     unsigned int i;
-    uint32_t cid = ESP_getChipId();
-    uint32_t* pkey = (uint32_t *)&key[0];
+    uint32_t cid = ACPU::getChipId();
+    auto *pkey = (uint32_t *)&key[0];
     uint8_t data[str.length()];
 
     *pkey = cid;
@@ -54,8 +54,8 @@ void strDecode(String &str)
 
     const char *src = &str[0];
     uint8_t key[4];
-    uint32_t cid = ESP_getChipId();
-    uint32_t* pkey = (uint32_t *)&key[0];
+    uint32_t cid = ACPU::getChipId();
+    auto *pkey = (uint32_t *)&key[0];
     uint8_t data[str.length()];
     String result = F("");