diff --git a/linux-user/arm/target_structs.h b/linux-user/arm/target_structs.h
index 339b070bf1..25bf8dd3a5 100644
--- a/linux-user/arm/target_structs.h
+++ b/linux-user/arm/target_structs.h
@@ -48,12 +48,4 @@ struct target_shmid_ds {
     abi_ulong __unused4;
     abi_ulong __unused5;
 };
-
-struct target_oabi_flock64 {
-    abi_short l_type;
-    abi_short l_whence;
-    abi_llong l_start;
-    abi_llong l_len;
-    abi_int   l_pid;
-} QEMU_PACKED;
 #endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ce9d64896c..ca6e0b8fb0 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6927,6 +6927,14 @@ typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
 typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
 
 #if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
+struct target_oabi_flock64 {
+    abi_short l_type;
+    abi_short l_whence;
+    abi_llong l_start;
+    abi_llong l_len;
+    abi_int   l_pid;
+} QEMU_PACKED;
+
 static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
                                                    abi_ulong target_flock_addr)
 {