diff --git a/cross/bossa/Portfile b/cross/bossa/Portfile
index ff6448d064c5c..0a49df9b9a488 100644
--- a/cross/bossa/Portfile
+++ b/cross/bossa/Portfile
@@ -28,7 +28,8 @@ default_variants    +wxwidgets
 depends_lib-append  port:readline
 
 # Remove default CXXFLAGS so MacPorts can set them.
-patchfiles          patch-Makefile
+patchfiles          patch-Makefile \
+                    patch-clang_Wunqualified-std-cast-call.diff
 
 # The Makefile is racy
 use_parallel_build  no
diff --git a/cross/bossa/files/patch-clang_Wunqualified-std-cast-call.diff b/cross/bossa/files/patch-clang_Wunqualified-std-cast-call.diff
new file mode 100644
index 0000000000000..17b33cf3d0a80
--- /dev/null
+++ b/cross/bossa/files/patch-clang_Wunqualified-std-cast-call.diff
@@ -0,0 +1,28 @@
+From 6e54973c3c758674c3d04b5e2cf12e097006f6a3 Mon Sep 17 00:00:00 2001
+From: Mark Mentovai <mark@mentovai.com>
+Date: Fri, 29 Sep 2023 11:03:26 -0400
+Subject: [PATCH] Fix build with clang -Wunqualified-std-cast-call
+
+This warning is enabled by default since clang 15. This fixes a build
+error with those recent versions of clang because BOSSA builds with
+-Werror.
+---
+ src/Samba.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git src/Samba.cpp src/Samba.cpp
+index 490e3936a445..e2076bb6c194 100644
+--- src/Samba.cpp
++++ src/Samba.cpp
+@@ -141,7 +141,7 @@ Samba::init()
+ bool
+ Samba::connect(SerialPort::Ptr port, int bps)
+ {
+-    _port = move(port);
++    _port = std::move(port);
+ 
+     // Try to connect at a high speed if USB
+     _isUsb = _port->isUsb();
+-- 
+2.42.0
+