diff --git a/src/core/Zip.cpp b/src/core/Zip.cpp
index 7ce770e518..9dad0b72a4 100644
--- a/src/core/Zip.cpp
+++ b/src/core/Zip.cpp
@@ -59,7 +59,7 @@ public:
         return name;
     }
 
-    const uint64 GetFileSize(size_t index) const override
+    uint64 GetFileSize(size_t index) const override
     {
         zip_stat_t zipFileStat;
         if (zip_stat_index(_zip, index, 0, &zipFileStat) == ZIP_ER_OK)
diff --git a/src/core/Zip.h b/src/core/Zip.h
index 88a24698d3..8e3c8798ca 100644
--- a/src/core/Zip.h
+++ b/src/core/Zip.h
@@ -27,7 +27,7 @@ interface IZipArchive
 
     virtual size_t          GetNumFiles() const abstract;
     virtual const utf8 *    GetFileName(size_t index) const abstract;
-    virtual const uint64    GetFileSize(size_t index) const abstract;
+    virtual uint64          GetFileSize(size_t index) const abstract;
     virtual void *          GetFileData(const utf8 * path, size_t * outSize) const abstract;
 
     /**
diff --git a/src/title/TitleSequenceManager.cpp b/src/title/TitleSequenceManager.cpp
index ba95b04cad..1a01354dc6 100644
--- a/src/title/TitleSequenceManager.cpp
+++ b/src/title/TitleSequenceManager.cpp
@@ -170,7 +170,7 @@ namespace TitleSequenceManager
         return std::string(path);
     }
 
-    static const uint16 GetPredefinedIndex(const std::string &path)
+    static uint16 GetPredefinedIndex(const std::string &path)
     {
         const utf8 * filename = Path::GetFileName(path.c_str());
         for (uint16 i = 0; i < Util::CountOf(PredefinedSequences); i++)