diff --git a/commands/memcmp.c b/commands/memcmp.c
index d1c4f52..76fbe07 100644
--- a/commands/memcmp.c
+++ b/commands/memcmp.c
@@ -42,7 +42,8 @@
 	int     ret = 1;
 	int     offset = 0;
 
-	if (memcpy_parse_options(argc, argv, &sourcefd, &destfd, &count) < 0)
+	if (memcpy_parse_options(argc, argv, &sourcefd, &destfd, &count,
+				 O_RWSIZE_1, O_RDONLY) < 0)
 		return 1;
 
 	buf = xmalloc(RW_BUF_SIZE + RW_BUF_SIZE);
diff --git a/commands/memcpy.c b/commands/memcpy.c
index 5f0047f..b2cea8c 100644
--- a/commands/memcpy.c
+++ b/commands/memcpy.c
@@ -41,7 +41,8 @@
 	int ret = 0;
 	char *buf;
 
-	if (memcpy_parse_options(argc, argv, &sourcefd, &destfd, &count) < 0)
+	if (memcpy_parse_options(argc, argv, &sourcefd, &destfd, &count,
+				 0, O_WRONLY | O_CREAT) < 0)
 		return 1;
 
 	buf = xmalloc(RW_BUF_SIZE);
diff --git a/include/common.h b/include/common.h
index b129497..a947406 100644
--- a/include/common.h
+++ b/include/common.h
@@ -117,7 +117,8 @@
 int mem_parse_options(int argc, char *argv[], char *optstr, int *mode,
 		char **sourcefile, char **destfile, int *swab);
 int memcpy_parse_options(int argc, char *argv[], int *sourcefd,
-			 int *destfd, loff_t *count);
+			 int *destfd, loff_t *count,
+			 int rwsize, int destmode);
 #define RW_BUF_SIZE	(unsigned)4096
 
 extern const char version_string[];
diff --git a/lib/misc.c b/lib/misc.c
index 18153bb..7add1fe 100644
--- a/lib/misc.c
+++ b/lib/misc.c
@@ -173,10 +173,11 @@
 }
 
 int memcpy_parse_options(int argc, char *argv[], int *sourcefd,
-			 int *destfd, loff_t *count)
+			 int *destfd, loff_t *count,
+			 int rwsize, int destmode)
 {
 	loff_t dest, src;
-	int mode = 0;
+	int mode = rwsize;
 	char *sourcefile = NULL;
 	char *destfile = NULL;
 	struct  stat statbuf;
@@ -212,7 +213,7 @@
 	if (*sourcefd < 0)
 		return -1;
 
-	*destfd = open_and_lseek(destfile, O_WRONLY | O_CREAT | mode, dest);
+	*destfd = open_and_lseek(destfile, mode | destmode, dest);
 	if (*destfd < 0) {
 		close(*sourcefd);
 		return -1;