diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index 921d482160..c180fafb15 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -331,6 +331,7 @@
   IOCTL(LOOP_SET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64)))
   IOCTL(LOOP_GET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64)))
   IOCTL(LOOP_CHANGE_FD, 0, TYPE_INT)
+  IOCTL_SPECIAL(LOOP_BOGUS_CMD, 0, do_ioctl_fail, TYPE_INT)
 
   IOCTL(MTIOCTOP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_mtop)))
   IOCTL(MTIOCGET, IOC_R, MK_PTR(MK_STRUCT(STRUCT_mtget)))
diff --git a/linux-user/linux_loop.h b/linux-user/linux_loop.h
index 8974caa9d0..810ae616ed 100644
--- a/linux-user/linux_loop.h
+++ b/linux-user/linux_loop.h
@@ -91,5 +91,6 @@ struct loop_info64 {
 #define LOOP_SET_STATUS64	0x4C04
 #define LOOP_GET_STATUS64	0x4C05
 #define LOOP_CHANGE_FD		0x4C06
+#define LOOP_BOGUS_CMD		0x4C82
 
 #endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index f6187cec1f..84621cc21b 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3821,6 +3821,13 @@ static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
     return get_errno(ioctl(fd, ie->host_cmd, sig));
 }
 
+static abi_long do_ioctl_fail(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
+                              abi_long cmd, abi_long arg)
+{
+    /* Fail silently */
+    return -EINVAL;
+}
+
 static IOCTLEntry ioctl_entries[] = {
 #define IOCTL(cmd, access, ...) \
     { TARGET_ ## cmd, cmd, #cmd, access, 0, {  __VA_ARGS__ } },
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 3a559896fd..d6ccacc228 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -1061,6 +1061,7 @@ struct target_pollfd {
 #define TARGET_LOOP_SET_STATUS64      0x4C04
 #define TARGET_LOOP_GET_STATUS64      0x4C05
 #define TARGET_LOOP_CHANGE_FD         0x4C06
+#define TARGET_LOOP_BOGUS_CMD         0x4C82
 
 /* fb ioctls */
 #define TARGET_FBIOGET_VSCREENINFO    0x4600