diff --git a/OpenIPMI-py313compat.patch b/OpenIPMI-py313compat.patch
new file mode 100644
index 0000000..60845b4
--- /dev/null
+++ b/OpenIPMI-py313compat.patch
@@ -0,0 +1,12 @@
+diff -ur OpenIPMI-2.0.34/swig/OpenIPMI.i OpenIPMI-2.0.34-python/swig/OpenIPMI.i
+--- OpenIPMI-2.0.34/swig/OpenIPMI.i	2024-02-11 19:52:41.555777279 +0100
++++ OpenIPMI-2.0.34-python/swig/OpenIPMI.i	2024-02-11 20:11:59.061132776 +0100
+@@ -38,6 +38,7 @@
+ #include <config.h>
+ #include <sys/types.h>
+ #include <sys/socket.h>
++#include <ctype.h>
+ 
+ #ifdef HAVE_GETADDRINFO
+ #include <netdb.h>
+Only in OpenIPMI-2.0.34-python/swig: OpenIPMI.i~
diff --git a/OpenIPMI.spec b/OpenIPMI.spec
index 8edb0de..1aedd17 100644
--- a/OpenIPMI.spec
+++ b/OpenIPMI.spec
@@ -15,6 +15,7 @@ Patch1:     0001-man.patch
 Patch2:     OpenIPMI-ax-python.patch
 Patch3:     OpenIPMI-sysconfig.patch
 Patch4: OpenIPMI-c99.patch
+Patch5:     OpenIPMI-py313compat.patch
 
 BuildRequires: make
 BuildRequires:    gdbm-devel swig glib2-devel net-snmp-devel ncurses-devel