diff -up dos2unix-3.1/dos2unix.c.preserve-file-modes dos2unix-3.1/dos2unix.c
--- dos2unix-3.1/dos2unix.c.preserve-file-modes	2008-09-08 09:58:05.000000000 +0100
+++ dos2unix-3.1/dos2unix.c	2008-09-08 10:16:04.000000000 +0100
@@ -320,9 +320,10 @@ int ConvertDosToUnixNewFile(char *ipInFN
   struct stat StatBuf;
   struct utimbuf UTimeBuf;
   int fd;
+  mode_t mask;
 
   /* retrieve ipInFN file date stamp */
-  if ((ipFlag->KeepDate) && stat(ipInFN, &StatBuf))
+  if (stat(ipInFN, &StatBuf))
     RetVal = -1;
 
   if((fd = MakeTempFileFrom(ipOutFN, &TempPath))<0) {
@@ -346,6 +347,12 @@ int ConvertDosToUnixNewFile(char *ipInFN
     RetVal = -1;
   }
 
+  /* preserve original mode as modified by umask */
+  mask = umask(0);
+  umask(mask);
+  if (!RetVal && fchmod(fd, StatBuf.st_mode & ~mask))
+    RetVal = -1;
+
   /* conversion sucessful? */
   if ((!RetVal) && (ConvertDosToUnix(InF, TempF, ipFlag)))
     RetVal = -1;
