diff --git a/linux-user/strace.c b/linux-user/strace.c
index 5ea9acb082..6090dcc65d 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -8,7 +8,6 @@
 #include <sys/types.h>
 #include <sys/mount.h>
 #include <sys/mman.h>
-#include <linux/futex.h>
 #include <unistd.h>
 #include "qemu.h"
 
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 53a11ab877..11564fd0bc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -85,7 +85,6 @@
 #include "qemu-common.h"
 
 #if defined(USE_NPTL)
-#include <linux/futex.h>
 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
     CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
 #else
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 24217e40c9..acb781f4b6 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -2120,3 +2120,20 @@ struct target_mq_attr {
 #include "socket.h"
 
 #include "errno_defs.h"
+
+#define FUTEX_WAIT              0
+#define FUTEX_WAKE              1
+#define FUTEX_FD                2
+#define FUTEX_REQUEUE           3
+#define FUTEX_CMP_REQUEUE       4
+#define FUTEX_WAKE_OP           5
+#define FUTEX_LOCK_PI           6
+#define FUTEX_UNLOCK_PI         7
+#define FUTEX_TRYLOCK_PI        8
+#define FUTEX_WAIT_BITSET       9
+#define FUTEX_WAKE_BITSET       10
+
+#define FUTEX_PRIVATE_FLAG      128
+#define FUTEX_CLOCK_REALTIME    256
+#define FUTEX_CMD_MASK          ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
+