diff --git a/unix/zerrors_freebsd_386.go b/unix/zerrors_freebsd_386.go
index 84824587..3689c808 100644
--- a/unix/zerrors_freebsd_386.go
+++ b/unix/zerrors_freebsd_386.go
@@ -339,6 +339,12 @@ const (
 	CLOCK_UPTIME_FAST              = 0x8
 	CLOCK_UPTIME_PRECISE           = 0x7
 	CLOCK_VIRTUAL                  = 0x1
+	CPUSTATES                      = 0x5
+	CP_IDLE                        = 0x4
+	CP_INTR                        = 0x3
+	CP_NICE                        = 0x1
+	CP_SYS                         = 0x2
+	CP_USER                        = 0x0
 	CREAD                          = 0x800
 	CRTSCTS                        = 0x30000
 	CS5                            = 0x0
diff --git a/unix/zerrors_freebsd_amd64.go b/unix/zerrors_freebsd_amd64.go
index 4acd101c..b8f7c3c9 100644
--- a/unix/zerrors_freebsd_amd64.go
+++ b/unix/zerrors_freebsd_amd64.go
@@ -339,6 +339,12 @@ const (
 	CLOCK_UPTIME_FAST              = 0x8
 	CLOCK_UPTIME_PRECISE           = 0x7
 	CLOCK_VIRTUAL                  = 0x1
+	CPUSTATES                      = 0x5
+	CP_IDLE                        = 0x4
+	CP_INTR                        = 0x3
+	CP_NICE                        = 0x1
+	CP_SYS                         = 0x2
+	CP_USER                        = 0x0
 	CREAD                          = 0x800
 	CRTSCTS                        = 0x30000
 	CS5                            = 0x0
diff --git a/unix/zerrors_freebsd_arm.go b/unix/zerrors_freebsd_arm.go
index e4719873..be14bb1a 100644
--- a/unix/zerrors_freebsd_arm.go
+++ b/unix/zerrors_freebsd_arm.go
@@ -339,6 +339,12 @@ const (
 	CLOCK_UPTIME_FAST              = 0x8
 	CLOCK_UPTIME_PRECISE           = 0x7
 	CLOCK_VIRTUAL                  = 0x1
+	CPUSTATES                      = 0x5
+	CP_IDLE                        = 0x4
+	CP_INTR                        = 0x3
+	CP_NICE                        = 0x1
+	CP_SYS                         = 0x2
+	CP_USER                        = 0x0
 	CREAD                          = 0x800
 	CRTSCTS                        = 0x30000
 	CS5                            = 0x0
diff --git a/unix/zerrors_freebsd_arm64.go b/unix/zerrors_freebsd_arm64.go
index 5e49769d..7ce9c008 100644
--- a/unix/zerrors_freebsd_arm64.go
+++ b/unix/zerrors_freebsd_arm64.go
@@ -339,6 +339,12 @@ const (
 	CLOCK_UPTIME_FAST              = 0x8
 	CLOCK_UPTIME_PRECISE           = 0x7
 	CLOCK_VIRTUAL                  = 0x1
+	CPUSTATES                      = 0x5
+	CP_IDLE                        = 0x4
+	CP_INTR                        = 0x3
+	CP_NICE                        = 0x1
+	CP_SYS                         = 0x2
+	CP_USER                        = 0x0
 	CREAD                          = 0x800
 	CRTSCTS                        = 0x30000
 	CS5                            = 0x0