diff --git a/components/log/CMakeLists.txt b/components/log/CMakeLists.txt
index 2ca586a2d6..9590c8913b 100644
--- a/components/log/CMakeLists.txt
+++ b/components/log/CMakeLists.txt
@@ -14,7 +14,9 @@ endif()
 set(srcs "src/${system_target}/log_timestamp.c"
          "src/log_timestamp_common.c"
          "src/${system_target}/log_lock.c"
+         "src/buffer/log_buffers.c"
          "src/${system_target}/util.c"
+         "src/util.c"
          "src/log_print.c"
          "src/log.c")
 
@@ -25,10 +27,6 @@ if(NOT non_os_build)
 
     list(APPEND srcs "src/os/log_write.c")
 
-    # Buffer APIs call ESP_LOG_LEVEL -> esp_log_write, which can not used in bootloader.
-    list(APPEND srcs "src/buffer/log_buffers.c"
-                     "src/util.c")
-
     list(APPEND srcs "src/log_level/log_level.c"
                      "src/log_level/tag_log_level/tag_log_level.c")
 
diff --git a/components/log/include/esp_log_buffer.h b/components/log/include/esp_log_buffer.h
index d9e3a49807..e38bde768c 100644
--- a/components/log/include/esp_log_buffer.h
+++ b/components/log/include/esp_log_buffer.h
@@ -13,8 +13,6 @@
 extern "C" {
 #endif
 
-#if !NON_OS_BUILD || __DOXYGEN__
-
 /**
  * @brief Logs a buffer of hexadecimal bytes at the specified log level.
  *
@@ -173,8 +171,6 @@ static inline void esp_log_buffer_char(const char *tag, const void *buffer, uint
 }
 /** @endcond */
 
-#endif // !NON_OS_BUILD || __DOXYGEN__
-
 #ifdef __cplusplus
 }
 #endif