diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs
index d9c8c82f32311..66dad9182ee14 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs
@@ -259,6 +259,12 @@ s! {
 }
 
 pub const ELAST: c_int = 96;
+#[deprecated(
+    since = "0.2.187",
+    note = "This constant, among others often used in C for the purposes of denoting the latest \
+            value or limit in a set of constants, has been deprecated. See #3131 for details and \
+            discussion."
+)]
 pub const RAND_MAX: c_int = 0x7fff_fffd;
 pub const KI_NSPARE_PTR: usize = 6;
 pub const MINCORE_SUPER: c_int = 0x20;
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
index 418c1b34f02b7..3e25b3dd91267 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd12/mod.rs
@@ -303,6 +303,12 @@ s! {
     }
 }
 
+#[deprecated(
+    since = "0.2.187",
+    note = "This constant, among others often used in C for the purposes of denoting the latest \
+            value or limit in a set of constants, has been deprecated. See #3131 for details and \
+            discussion."
+)]
 pub const RAND_MAX: c_int = 0x7fff_fffd;
 pub const ELAST: c_int = 97;
 
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
index 3367a1e2be418..b27bffbe9c46e 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd13/mod.rs
@@ -316,6 +316,12 @@ s! {
     }
 }
 
+#[deprecated(
+    since = "0.2.187",
+    note = "This constant, among others often used in C for the purposes of denoting the latest \
+            value or limit in a set of constants, has been deprecated. See #3131 for details and \
+            discussion."
+)]
 pub const RAND_MAX: c_int = 0x7fff_ffff;
 pub const ELAST: c_int = 97;
 
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs
index 61fa838b5b20e..0cb1f86ce41e9 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd14/mod.rs
@@ -318,6 +318,12 @@ s! {
     }
 }
 
+#[deprecated(
+    since = "0.2.187",
+    note = "This constant, among others often used in C for the purposes of denoting the latest \
+            value or limit in a set of constants, has been deprecated. See #3131 for details and \
+            discussion."
+)]
 pub const RAND_MAX: c_int = 0x7fff_ffff;
 pub const ELAST: c_int = 97;
 
diff --git a/src/unix/bsd/freebsdlike/freebsd/freebsd15/mod.rs b/src/unix/bsd/freebsdlike/freebsd/freebsd15/mod.rs
index ca2dcd5c8f4e8..063b8ccd050d8 100644
--- a/src/unix/bsd/freebsdlike/freebsd/freebsd15/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/freebsd15/mod.rs
@@ -320,6 +320,12 @@ s! {
     }
 }
 
+#[deprecated(
+    since = "0.2.187",
+    note = "This constant, among others often used in C for the purposes of denoting the latest \
+            value or limit in a set of constants, has been deprecated. See #3131 for details and \
+            discussion."
+)]
 pub const RAND_MAX: c_int = 0x7fff_ffff;
 pub const ELAST: c_int = 97;