diff --git a/lib/ZipFile/ZipFile.cpp b/lib/ZipFile/ZipFile.cpp
index 6096168e..1f99dc7f 100644
--- a/lib/ZipFile/ZipFile.cpp
+++ b/lib/ZipFile/ZipFile.cpp
@@ -27,6 +27,15 @@ bool inflateOneShot(const uint8_t* inputBuf, const size_t deflatedSize, uint8_t*
   return true;
 }
 
+ZipFile::ZipFile(std::string filePath) : filePath(std::move(filePath)) {
+  const bool status = mz_zip_reader_init_file(&zipArchive, this->filePath.c_str(), 0);
+
+  if (!status) {
+    Serial.printf("[%lu] [ZIP] mz_zip_reader_init_file() failed for %s! Error: %s\n", millis(), this->filePath.c_str(),
+                  mz_zip_get_error_string(zipArchive.m_last_error));
+  }
+}
+
 bool ZipFile::loadFileStat(const char* filename, mz_zip_archive_file_stat* fileStat) const {
   // find the file
   mz_uint32 fileIndex = 0;
diff --git a/lib/ZipFile/ZipFile.h b/lib/ZipFile/ZipFile.h
index 494d4c7a..58e3ab91 100644
--- a/lib/ZipFile/ZipFile.h
+++ b/lib/ZipFile/ZipFile.h
@@ -1,9 +1,6 @@
 #pragma once
-#include <HardwareSerial.h>
 #include <Print.h>
 
-#include <cstddef>
-#include <functional>
 #include <string>
 
 #include "miniz.h"
@@ -15,14 +12,7 @@ class ZipFile {
   long getDataOffset(const mz_zip_archive_file_stat& fileStat) const;
 
  public:
-  explicit ZipFile(std::string filePath) : filePath(std::move(filePath)) {
-    const bool status = mz_zip_reader_init_file(&zipArchive, this->filePath.c_str(), 0);
-
-    if (!status) {
-      Serial.printf("[%lu] [ZIP] mz_zip_reader_init_file() failed for %s! Error: %s\n", millis(),
-                    this->filePath.c_str(), mz_zip_get_error_string(zipArchive.m_last_error));
-    }
-  }
+  explicit ZipFile(std::string filePath);
   ~ZipFile() { mz_zip_reader_end(&zipArchive); }
   bool getInflatedFileSize(const char* filename, size_t* size) const;
   uint8_t* readFileToMemory(const char* filename, size_t* size = nullptr, bool trailingNullByte = false) const;