diff --git a/linux-user/alpha/syscall_nr.h b/linux-user/alpha/syscall_nr.h
index f6284db22fc790dab10f86e5d264f2d9dde5ab8a..ac2b6e2c6539973e1fa329de9c8c16b30ef4282a 100644
--- a/linux-user/alpha/syscall_nr.h
+++ b/linux-user/alpha/syscall_nr.h
@@ -46,7 +46,7 @@
 #define TARGET_NR_open		 45
 #define TARGET_NR_osf_old_sigaction	 46	/* not implemented */
 #define TARGET_NR_getxgid		 47
-#define TARGET_NR_osf_sigprocmask	 48
+#define TARGET_NR_sigprocmask    48
 #define TARGET_NR_osf_getlogin	 49	/* not implemented */
 #define TARGET_NR_osf_setlogin	 50	/* not implemented */
 #define TARGET_NR_acct		 51
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 07823e176b812d0bb33847a1d8491b609a35c9b0..0d3fff52e98a05bbda02b74275fb0e3e0e9e5d20 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5881,11 +5881,10 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
             target_to_host_old_sigset(&set, &mask);
 
             ret = get_errno(sigprocmask(how, &set, &oldset));
-
             if (!is_error(ret)) {
                 host_to_target_old_sigset(&mask, &oldset);
                 ret = mask;
-                ((CPUAlphaState *)cpu_env)->[IR_V0] = 0; /* force no error */
+                ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
             }
 #else
             sigset_t set, oldset, *set_ptr;