diff --git a/archivers/unalz/files/patch-UnAlz.cpp b/archivers/unalz/files/patch-UnAlz.cpp
index 6bb4d2e3d5a5..f0cd87c72cb3 100644
--- a/archivers/unalz/files/patch-UnAlz.cpp
+++ b/archivers/unalz/files/patch-UnAlz.cpp
@@ -1,15 +1,25 @@
---- UnAlz.cpp.orig
+--- UnAlz.cpp.orig	2014-07-07 10:40:53.000000000 +0000
 +++ UnAlz.cpp
 @@ -37,7 +37,7 @@
  #	include <errno.h>
  #endif
  
 -#if defined(__NetBSD__)
-+#if defined(__NetBSD__) || defined(__FreeBSD__)
++#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
  #	include <sys/param.h>	// __NetBSD_Version__
  #	include <errno.h>		// iconv.h ¶§¹®¿¡ ÇÊ¿ä 
  #endif
-@@ -1907,7 +1907,11 @@
+@@ -455,7 +455,8 @@ BOOL CUnAlz::ReadLocalFileheader()
+ 	size_t size;
+ 	char inbuf[ICONV_BUF_SIZE];
+ 	char outbuf[ICONV_BUF_SIZE];
+-#if defined(__FreeBSD__) || defined(__CYGWIN__) ||  defined(__NetBSD__)
++#if defined(__FreeBSD__) || defined(__CYGWIN__) ||  defined(__NetBSD__) \
++ || defined(__DragonFly__)
+ 	const char *inptr = inbuf;
+ #else
+ 	char *inptr = inbuf;
+@@ -1907,7 +1908,11 @@ void CUnAlz::DecryptingData(int nSize, B
  ////////////////////////////////////////////////////////////////////////////////////////////////////
  UINT32 CUnAlz::CRC32(UINT32 l, BYTE c)
  {