diff --git a/psxscl.local.patch b/psxscl.local.patch
index a00c77b..491b7cc 100644
--- a/psxscl.local.patch
+++ b/psxscl.local.patch
@@ -135,3 +135,16 @@ index a623d2a..80dd4a9 100644
  			image->info.hfile)))
  		return __execve_return(tlca,0,target,-ENOEXEC);
  
+--- psxscl/src/mman/_mmap.c.orig	2016-03-07 14:29:56.539765500 +0100
++++ psxscl/src/mman/_mmap.c	2016-03-07 14:37:21.460223800 +0100
+@@ -95,7 +95,9 @@
+ 		return (void *)__psx_sig_epilog(m.tlca,-EINVAL,EPSXONLY);
+ 
+ 	/* protection */
+-	if (__psx_convert_flags_to_native(
++	if (!prot)
++		m.cprot = NT_PAGE_NOACCESS;
++	else if (__psx_convert_flags_to_native(
+ 			__mmap_section_prot,
+ 			prot,&m.cprot,0))
+ 		return (void *)__psx_sig_epilog(m.tlca,-EINVAL,EPSXONLY);