diff --git a/source/lib/res/file.cpp b/source/lib/res/file.cpp
index 27eb47e236..560bcf5555 100755
--- a/source/lib/res/file.cpp
+++ b/source/lib/res/file.cpp
@@ -1365,7 +1365,6 @@ int file_map(File* const f, void*& p, size_t& size)
 	if(f->size == 0)
 		return -1;
 
-	const int prot = (f->flags & FILE_WRITE)? PROT_WRITE : PROT_READ;
 	f->mapping = mmap((void*)0, f->size, prot, MAP_PRIVATE, f->fd, (off_t)0);
 	if(!f->mapping)
 		return ERR_NO_MEM;