diff --git a/debian/patches/523_su_arguments_are_concatenated b/debian/patches/523_su_arguments_are_concatenated
deleted file mode 100644
index 954ddc9c..00000000
--- a/debian/patches/523_su_arguments_are_concatenated
+++ /dev/null
@@ -1,48 +0,0 @@
-Goal: Concatenate the non-su arguments and provide them to the shell with
-      the -c option
-Fixes: #317264
-       see also #276419
-
-Status wrt upstream: This is a Debian specific patch.
-
-Note: the fix of the man page is still missing.
-      (to be taken from the trunk)
-
---- a/src/su.c
-+++ b/src/su.c
-@@ -1201,6 +1201,35 @@
- 			argv[0] = "-c";
- 			argv[1] = command;
- 		}
-+		/* On Debian, the arguments are concatenated and the
-+		 * resulting string is always given to the shell with its
-+		 * -c option.
-+		 */
-+		{
-+			char **parg;
-+			unsigned int cmd_len = 0;
-+			char *cmd = NULL;
-+			if (strcmp(argv[0], "-c") != 0) {
-+				argv--;
-+				argv[0] = "-c";
-+			}
-+			/* Now argv[0] is always -c, and other arguments
-+			 * can be concatenated
-+			 */
-+			cmd_len = 1; /* finale '\0' */
-+			for (parg = &argv[1]; *parg; parg++) {
-+				cmd_len += strlen (*parg) + 1;
-+			}
-+			cmd = (char *) xmalloc (sizeof (char) * cmd_len);
-+			cmd[0] = '\0';
-+			for (parg = &argv[1]; *parg; parg++) {
-+				strcat (cmd, " ");
-+				strcat (cmd, *parg);
-+			}
-+			cmd[cmd_len - 1] = '\0';
-+			argv[1] = &cmd[1]; /* do not take first space */
-+			argv[2] = NULL;
-+		}
- 		/*
- 		 * Use the shell and create an argv
- 		 * with the rest of the command line included.
diff --git a/debian/patches/523_su_arguments_are_no_more_concatenated_by_default b/debian/patches/523_su_arguments_are_no_more_concatenated_by_default
deleted file mode 100644
index ed6f5049..00000000
--- a/debian/patches/523_su_arguments_are_no_more_concatenated_by_default
+++ /dev/null
@@ -1,50 +0,0 @@
-Goal: Do not concatenate the additional arguments, and support an
-      environment variable to revert to the old Debian's su behavior.
-
-This patch needs the su_arguments_are_concatenated patch.
-
-This patch, and su_arguments_are_concatenated should be dropped after
-Etch.
-
-Status wrt upstream: This patch is Debian specific.
-
---- a/src/su.c
-+++ b/src/su.c
-@@ -104,6 +104,19 @@
- /* If nonzero, change some environment vars to indicate the user su'd to. */
- static bool change_environment = true;
- 
-+/*
-+ * If nonzero, keep the old Debian behavior:
-+ *   * concatenate all the arguments and provide them to the -c option of
-+ *     the shell
-+ *   * If there are some additional arguments, but no -c, add a -c
-+ *     argument anyway
-+ * Drawbacks:
-+ *   * you can't provide options to the shell (other than -c)
-+ *   * you can't rely on the argument count
-+ * See http://bugs.debian.org/276419
-+ */
-+static int old_debian_behavior;
-+
- #ifdef USE_PAM
- static char kill_msg[256];
- static char wait_msg[256];
-@@ -983,6 +996,8 @@
- 	int ret;
- #endif				/* USE_PAM */
- 
-+	old_debian_behavior = (getenv("SU_NO_SHELL_ARGS") != NULL);
-+
- 	(void) setlocale (LC_ALL, "");
- 	(void) bindtextdomain (PACKAGE, LOCALEDIR);
- 	(void) textdomain (PACKAGE);
-@@ -1205,7 +1220,7 @@
- 		 * resulting string is always given to the shell with its
- 		 * -c option.
- 		 */
--		{
-+		if (old_debian_behavior) {
- 			char **parg;
- 			unsigned int cmd_len = 0;
- 			char *cmd = NULL;
diff --git a/debian/patches/series b/debian/patches/series
index 8d6f6898..68dc397a 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -11,8 +11,6 @@
 506_relaxed_usernames
 542_useradd-O_option
 463_login_delay_obeys_to_PAM
-523_su_arguments_are_concatenated
-523_su_arguments_are_no_more_concatenated_by_default
 508_nologin_in_usr_sbin
 505_useradd_recommend_adduser
 501_commonio_group_shadow