diff --git a/source/fs/FSUtils.cpp b/source/fs/FSUtils.cpp
index 8c8bac6..76fa2d4 100644
--- a/source/fs/FSUtils.cpp
+++ b/source/fs/FSUtils.cpp
@@ -162,7 +162,7 @@ bool FSUtils::copyFile(const std::string &in, const std::string &out) {
     return true;
 }
 
-int32_t FSUtils::saveBufferToFile(const char *path, void *buffer, uint32_t size) {
+int32_t FSUtils::saveBufferToFile(const char *path, const void *buffer, uint32_t size) {
     CFile file(path, CFile::WriteOnly);
     if (!file.isOpen()) {
         return -1;
diff --git a/source/fs/FSUtils.h b/source/fs/FSUtils.h
index 99e2cd4..b38a999 100644
--- a/source/fs/FSUtils.h
+++ b/source/fs/FSUtils.h
@@ -13,5 +13,5 @@ public:
 
     static bool copyFile(const std::string &in, const std::string &out);
 
-    static int32_t saveBufferToFile(const char *path, void *buffer, uint32_t size);
-};
\ No newline at end of file
+    static int32_t saveBufferToFile(const char *path, const void *buffer, uint32_t size);
+};