diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index cd9b6f9a8d..1830de96e1 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -177,6 +177,8 @@
 #endif
 #endif /* CONFIG_USBFS */
 
+  IOCTL(FIOGETOWN, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(FIOSETOWN, IOC_W, MK_PTR(TYPE_INT))
   IOCTL(SIOCATMARK, IOC_R, MK_PTR(TYPE_INT))
   IOCTL(SIOCGIFNAME, IOC_RW, MK_PTR(MK_STRUCT(STRUCT_int_ifreq)))
   IOCTL(SIOCGIFFLAGS, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_short_ifreq)))
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 19a1d39cbc..498223b777 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -758,10 +758,14 @@ struct target_pollfd {
 
 #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) ||    \
        defined(TARGET_XTENSA)
+#define TARGET_FIOGETOWN       TARGET_IOR('f', 123, int)
+#define TARGET_FIOSETOWN       TARGET_IOW('f', 124, int)
 #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_FIOGETOWN       0x8903
+#define TARGET_FIOSETOWN       0x8901
 #define TARGET_SIOCATMARK      0x8905
 #define TARGET_SIOCSPGRP       0x8902
 #define TARGET_SIOCGPGRP       0x8904