diff --git a/SheepShaver/src/Unix/main_unix.cpp b/SheepShaver/src/Unix/main_unix.cpp
index 7d713b4a..6939239d 100755
--- a/SheepShaver/src/Unix/main_unix.cpp
+++ b/SheepShaver/src/Unix/main_unix.cpp
@@ -1004,7 +1004,7 @@ int main(int argc, char **argv)
 #if !EMULATED_PPC
 	flush_icache_range(ROMBase, ROMBase + ROM_AREA_SIZE);
 #endif
-//	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
+	vm_protect(ROMBaseHost, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_EXECUTE);
 
 	// Start 60Hz thread
 	tick_thread_cancel = false;