diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index 37501f575c..99ed9d9825 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -218,6 +218,7 @@
   IOCTL(SIOCSRARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
   IOCTL(SIOCGRARP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
   IOCTL(SIOCGIWNAME, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_char_ifreq)))
+  IOCTL(SIOCSPGRP, IOC_W, MK_PTR(TYPE_INT)) /* pid_t */
   IOCTL(SIOCGPGRP, IOC_R, MK_PTR(TYPE_INT)) /* pid_t */
   IOCTL(SIOCGSTAMP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_timeval)))
   IOCTL(SIOCGSTAMPNS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_timespec)))
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 5b530e04b8..9470a5ce96 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -740,11 +740,14 @@ struct target_pollfd {
 #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) ||    \
        defined(TARGET_XTENSA)
 #define TARGET_SIOCATMARK      TARGET_IOR('s', 7, int)
+#define TARGET_SIOCSPGRP       TARGET_IOW('s', 8, pid_t)
 #define TARGET_SIOCGPGRP       TARGET_IOR('s', 9, pid_t)
 #else
 #define TARGET_SIOCATMARK      0x8905
+#define TARGET_SIOCSPGRP       0x8902
 #define TARGET_SIOCGPGRP       0x8904
 #endif
+
 #define TARGET_SIOCGSTAMP      0x8906          /* Get stamp (timeval) */
 #define TARGET_SIOCGSTAMPNS    0x8907          /* Get stamp (timespec) */