diff --git a/devel/py-spy/files/patch-cargo-crates_proc-maps-0.4.0_src_freebsd__maps_ptrace.rs b/devel/py-spy/files/patch-cargo-crates_proc-maps-0.4.0_src_freebsd__maps_ptrace.rs
new file mode 100644
index 000000000000..f4e282b3b13a
--- /dev/null
+++ b/devel/py-spy/files/patch-cargo-crates_proc-maps-0.4.0_src_freebsd__maps_ptrace.rs
@@ -0,0 +1,11 @@
+--- cargo-crates/proc-maps-0.4.0/src/freebsd_maps/ptrace.rs.orig	2026-02-18 12:55:35 UTC
++++ cargo-crates/proc-maps-0.4.0/src/freebsd_maps/ptrace.rs
+@@ -185,7 +185,7 @@ pub fn read_vm_entry(pid: Pid, vm_entry: ptrace_vm_ent
+ 
+ /// Read virtual memory entry
+ pub fn read_vm_entry(pid: Pid, vm_entry: ptrace_vm_entry) -> io::Result<ptrace_vm_entry> {
+-    let result = unsafe { ptrace(PT_VM_ENTRY, pid, &vm_entry as *const _ as *mut i8, 0) };
++    let result = unsafe { ptrace(PT_VM_ENTRY, pid, &vm_entry as *const _ as *mut c_char, 0) };
+ 
+     if result == -1 {
+         Err(io::Error::last_os_error())