diff --git a/arch/aarch64/bits/ipc.h b/arch/aarch64/bits/ipc.h
index 6f3328a8..ef39a0ca 100644
--- a/arch/aarch64/bits/ipc.h
+++ b/arch/aarch64/bits/ipc.h
@@ -10,5 +10,3 @@ struct ipc_perm {
 	unsigned long __pad1;
 	unsigned long __pad2;
 };
-
-#define IPC_64 0
diff --git a/arch/aarch64/syscall_arch.h b/arch/aarch64/syscall_arch.h
index 25f5ce67..504983aa 100644
--- a/arch/aarch64/syscall_arch.h
+++ b/arch/aarch64/syscall_arch.h
@@ -74,3 +74,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 #define VDSO_USEFUL
 #define VDSO_CGT_SYM "__kernel_clock_gettime"
 #define VDSO_CGT_VER "LINUX_2.6.39"
+
+#define IPC_64 0
diff --git a/arch/generic/bits/ipc.h b/arch/generic/bits/ipc.h
index 779c42fd..40d6f3a2 100644
--- a/arch/generic/bits/ipc.h
+++ b/arch/generic/bits/ipc.h
@@ -9,5 +9,3 @@ struct ipc_perm {
 	long __pad1;
 	long __pad2;
 };
-
-#define IPC_64 0x100
diff --git a/arch/mips64/bits/ipc.h b/arch/mips64/bits/ipc.h
index 43a8314e..df227168 100644
--- a/arch/mips64/bits/ipc.h
+++ b/arch/mips64/bits/ipc.h
@@ -10,5 +10,3 @@ struct ipc_perm {
 	unsigned long __unused1;
 	unsigned long __unused2;
 };
-
-#define IPC_64 0x100
diff --git a/arch/or1k/bits/ipc.h b/arch/or1k/bits/ipc.h
index 3d894e30..40d6f3a2 100644
--- a/arch/or1k/bits/ipc.h
+++ b/arch/or1k/bits/ipc.h
@@ -9,5 +9,3 @@ struct ipc_perm {
 	long __pad1;
 	long __pad2;
 };
-
-#define IPC_64 0
diff --git a/arch/or1k/syscall_arch.h b/arch/or1k/syscall_arch.h
index 5a9b074a..21738ce0 100644
--- a/arch/or1k/syscall_arch.h
+++ b/arch/or1k/syscall_arch.h
@@ -111,3 +111,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 				"r23", "r25", "r27", "r29", "r31");
 	return r11;
 }
+
+#define IPC_64 0
diff --git a/arch/powerpc/bits/ipc.h b/arch/powerpc/bits/ipc.h
index 3f2ede07..a388d56b 100644
--- a/arch/powerpc/bits/ipc.h
+++ b/arch/powerpc/bits/ipc.h
@@ -10,6 +10,3 @@ struct ipc_perm {
 	long long __pad2;
 	long long __pad3;
 };
-
-#define IPC_64 0x100
-
diff --git a/arch/powerpc64/bits/ipc.h b/arch/powerpc64/bits/ipc.h
index 3f2ede07..a388d56b 100644
--- a/arch/powerpc64/bits/ipc.h
+++ b/arch/powerpc64/bits/ipc.h
@@ -10,6 +10,3 @@ struct ipc_perm {
 	long long __pad2;
 	long long __pad3;
 };
-
-#define IPC_64 0x100
-
diff --git a/arch/riscv64/bits/ipc.h b/arch/riscv64/bits/ipc.h
index 6f3328a8..ef39a0ca 100644
--- a/arch/riscv64/bits/ipc.h
+++ b/arch/riscv64/bits/ipc.h
@@ -10,5 +10,3 @@ struct ipc_perm {
 	unsigned long __pad1;
 	unsigned long __pad2;
 };
-
-#define IPC_64 0
diff --git a/arch/riscv64/syscall_arch.h b/arch/riscv64/syscall_arch.h
index 3e0804ef..7fd042cd 100644
--- a/arch/riscv64/syscall_arch.h
+++ b/arch/riscv64/syscall_arch.h
@@ -74,3 +74,5 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
 /* We don't have a clock_gettime function.
 #define VDSO_CGT_SYM "__vdso_clock_gettime"
 #define VDSO_CGT_VER "LINUX_2.6" */
+
+#define IPC_64 0
diff --git a/arch/s390x/bits/ipc.h b/arch/s390x/bits/ipc.h
index 4710c12b..b71be9ec 100644
--- a/arch/s390x/bits/ipc.h
+++ b/arch/s390x/bits/ipc.h
@@ -10,5 +10,3 @@ struct ipc_perm {
 	unsigned long __pad2;
 	unsigned long __pad3;
 };
-
-#define IPC_64 0x100
diff --git a/arch/x32/bits/ipc.h b/arch/x32/bits/ipc.h
index 55d2e41a..a12380f6 100644
--- a/arch/x32/bits/ipc.h
+++ b/arch/x32/bits/ipc.h
@@ -9,5 +9,3 @@ struct ipc_perm {
 	long long __pad1;
 	long long __pad2;
 };
-
-#define IPC_64 0
diff --git a/arch/x32/syscall_arch.h b/arch/x32/syscall_arch.h
index 81d1d0df..e0a22160 100644
--- a/arch/x32/syscall_arch.h
+++ b/arch/x32/syscall_arch.h
@@ -87,3 +87,5 @@ static __inline long __syscall6(long long n, long long a1, long long a2, long lo
 #define SYS_rt_sigtimedwait_time64 SYS_rt_sigtimedwait
 #define SYS_futex_time64 SYS_futex
 #define SYS_sched_rr_get_interval_time64 SYS_sched_rr_get_interval
+
+#define IPC_64 0
diff --git a/arch/x86_64/bits/ipc.h b/arch/x86_64/bits/ipc.h
index 3d894e30..40d6f3a2 100644
--- a/arch/x86_64/bits/ipc.h
+++ b/arch/x86_64/bits/ipc.h
@@ -9,5 +9,3 @@ struct ipc_perm {
 	long __pad1;
 	long __pad2;
 };
-
-#define IPC_64 0
diff --git a/arch/x86_64/syscall_arch.h b/arch/x86_64/syscall_arch.h
index 54e05ff6..92d5c179 100644
--- a/arch/x86_64/syscall_arch.h
+++ b/arch/x86_64/syscall_arch.h
@@ -66,3 +66,5 @@ static __inline long __syscall6(long n, long a1, long a2, long a3, long a4, long
 #define VDSO_CGT_VER "LINUX_2.6"
 #define VDSO_GETCPU_SYM "__vdso_getcpu"
 #define VDSO_GETCPU_VER "LINUX_2.6"
+
+#define IPC_64 0
diff --git a/src/ipc/ipc.h b/src/ipc/ipc.h
index 30ab939a..36f3e213 100644
--- a/src/ipc/ipc.h
+++ b/src/ipc/ipc.h
@@ -1,3 +1,5 @@
+#include "syscall.h"
+
 #define IPCOP_semop      1
 #define IPCOP_semget     2
 #define IPCOP_semctl     3
@@ -10,3 +12,7 @@
 #define IPCOP_shmdt     22
 #define IPCOP_shmget    23
 #define IPCOP_shmctl    24
+
+#ifndef IPC_64
+#define IPC_64 0x100
+#endif