diff --git a/devel/py-pyopencl/Makefile b/devel/py-pyopencl/Makefile
--- a/devel/py-pyopencl/Makefile
+++ b/devel/py-pyopencl/Makefile
@@ -1,6 +1,6 @@
 PORTNAME=	pyopencl
 PORTVERSION=	2018.2
-PORTREVISION=	9
+PORTREVISION=	10
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
diff --git a/devel/py-pyopencl/files/patch-src_wrap__constants.cpp b/devel/py-pyopencl/files/patch-src_wrap__constants.cpp
new file mode 100644
--- /dev/null
+++ b/devel/py-pyopencl/files/patch-src_wrap__constants.cpp
@@ -0,0 +1,11 @@
+--- src/wrap_constants.cpp.orig	2025-05-13 14:38:07 UTC
++++ src/wrap_constants.cpp
+@@ -67,7 +67,7 @@ void pyopencl_expose_constants(py::module &m)
+ #define DECLARE_EXC(NAME, BASE) \
+   static py::exception<pyopencl::error> CL##NAME(m, #NAME, BASE);
+ 
+-    DECLARE_EXC(Error, NULL);
++    DECLARE_EXC(Error, nullptr);
+     DECLARE_EXC(MemoryError, CLError.ptr());
+     DECLARE_EXC(LogicError, CLError.ptr());
+     DECLARE_EXC(RuntimeError, CLError.ptr());