diff --git a/linux-user/alpha/syscall_nr.h b/linux-user/alpha/syscall_nr.h
index ac2b6e2c65..d52d76e08e 100644
--- a/linux-user/alpha/syscall_nr.h
+++ b/linux-user/alpha/syscall_nr.h
@@ -20,7 +20,7 @@
 #define TARGET_NR_lseek		 19
 #define TARGET_NR_getxpid		 20
 #define TARGET_NR_osf_mount		 21
-#define TARGET_NR_umount		 22
+#define TARGET_NR_umount2		 22
 #define TARGET_NR_setuid		 23
 #define TARGET_NR_getxuid		 24
 #define TARGET_NR_exec_with_loader	 25	/* not implemented */
@@ -255,7 +255,7 @@
 #define TARGET_NR_sysinfo		318
 #define TARGET_NR__sysctl		319
 /* 320 was sys_idle.  */
-#define TARGET_NR_oldumount		321
+#define TARGET_NR_umount		321
 #define TARGET_NR_swapon		322
 #define TARGET_NR_times		323
 #define TARGET_NR_personality	324
diff --git a/linux-user/strace.list b/linux-user/strace.list
index 08f115d843..4f9c364664 100644
--- a/linux-user/strace.list
+++ b/linux-user/strace.list
@@ -612,9 +612,6 @@
 #ifdef TARGET_NR_oldstat
 { TARGET_NR_oldstat, "oldstat" , NULL, NULL, NULL },
 #endif
-#ifdef TARGET_NR_oldumount
-{ TARGET_NR_oldumount, "oldumount" , NULL, NULL, NULL },
-#endif
 #ifdef TARGET_NR_olduname
 { TARGET_NR_olduname, "olduname" , NULL, NULL, NULL },
 #endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index c62d8754f0..5c33e441cb 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5697,7 +5697,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
             unlock_user(p, arg1, 0);
         }
         break;
-#ifdef TARGET_NR_umount2 /* not on alpha */
+#ifdef TARGET_NR_umount2
     case TARGET_NR_umount2:
         if (!(p = lock_user_string(arg1)))
             goto efault;