diff --git a/sys/amd64/linux/syscalls.master b/sys/amd64/linux/syscalls.master
index 9cb2a899d88..896bbcc5e65 100644
--- a/sys/amd64/linux/syscalls.master
+++ b/sys/amd64/linux/syscalls.master
@@ -1282,7 +1282,12 @@
 		int linux_restart_syscall(void);
 	}
 220	AUE_NULL	STD {
-		int linux_semtimedop(void);
+		int linux_semtimedop(
+		    l_int semid,
+		    struct sembuf *tsops,
+		    l_size_t nsops,
+		    struct l_timespec *timeout
+		);
 	}
 221	AUE_NULL	STD {
 		int linux_fadvise64(
diff --git a/sys/amd64/linux32/syscalls.master b/sys/amd64/linux32/syscalls.master
index 0a9f408ed92..317f590de55 100644
--- a/sys/amd64/linux32/syscalls.master
+++ b/sys/amd64/linux32/syscalls.master
@@ -2449,7 +2449,12 @@
 		int linux_mq_timedreceive_time64(void);
 	}
 420	AUE_NULL	STD {
-		int linux_semtimedop_time64(void);
+		int linux_semtimedop_time64(
+		    l_int semid,
+		    struct sembuf *tsops,
+		    l_size_t nsops,
+		    struct l_timespec64 *timeout
+		);
 	}
 421	AUE_NULL	STD {
 		int linux_rt_sigtimedwait_time64(
diff --git a/sys/arm64/linux/syscalls.master b/sys/arm64/linux/syscalls.master
index efdc98771e0..0e0e14e8c63 100644
--- a/sys/arm64/linux/syscalls.master
+++ b/sys/arm64/linux/syscalls.master
@@ -1135,7 +1135,12 @@
 		);
 	}
 192	AUE_NULL	STD	{
-		int linux_semtimedop(void);
+		int linux_semtimedop(
+		    l_int semid,
+		    struct sembuf *tsops,
+		    l_size_t nsops,
+		    struct l_timespec *timeout
+		);
 	}
 193	AUE_NULL	NOPROTO	{
 		int semop(
diff --git a/sys/i386/linux/syscalls.master b/sys/i386/linux/syscalls.master
index b082fa6c423..60125205467 100644
--- a/sys/i386/linux/syscalls.master
+++ b/sys/i386/linux/syscalls.master
@@ -2467,7 +2467,12 @@
 		int linux_mq_timedreceive_time64(void);
 	}
 420	AUE_NULL	STD {
-		int linux_semtimedop_time64(void);
+		int linux_semtimedop_time64(
+		    l_int semid,
+		    struct sembuf *tsops,
+		    l_size_t nsops,
+		    struct l_timespec64 *timeout
+		);
 	}
 421	AUE_NULL	STD {
 		int linux_rt_sigtimedwait_time64(