diff --git a/libotr-4.1.1-ftbfs.patch b/libotr-4.1.1-ftbfs.patch
new file mode 100644
index 0000000..0fe5bc8
--- /dev/null
+++ b/libotr-4.1.1-ftbfs.patch
@@ -0,0 +1,13 @@
+
+https://bugzilla.redhat.com/show_bug.cgi?id=2100647
+
+--- libotr-4.1.1/tests/regression/client/client.c.ftbfs
++++ libotr-4.1.1/tests/regression/client/client.c
+@@ -27,6 +27,7 @@
+ #include <syscall.h>
+ #include <sys/epoll.h>
+ #include <sys/types.h>
++#include <sys/socket.h>
+ #include <sys/un.h>
+ #include <unistd.h>
+ 
diff --git a/libotr.spec b/libotr.spec
index b569e7a..b501ad6 100644
--- a/libotr.spec
+++ b/libotr.spec
@@ -2,9 +2,10 @@
 Summary: Off-The-Record Messaging library and toolkit
 Name: libotr
 Version: 4.1.1
-Release: 13%{?dist}
+Release: 14%{?dist}
 License: GPLv2 and LGPLv2
 Source0: http://otr.cypherpunks.ca/%{name}-%{version}.tar.gz
+Patch1: libotr-4.1.1-ftbfs.patch
 Url: http://otr.cypherpunks.ca/
 Provides: libotr-toolkit = %{version}
 Obsoletes: libotr-toolkit < %{version}
@@ -33,6 +34,7 @@ The devel package contains the libotr library and include files.
 
 %prep
 %setup -q
+%patch1 -p1 -b .ftbfs
 
 %if %{snapshot}
 aclocal
@@ -72,6 +74,10 @@ rm -rf $RPM_BUILD_ROOT%{_libdir}/*.la
 
 
 %changelog
+* Wed Jul  6 2022 Joe Orton <jorton@redhat.com> - 4.1.1-14
+- fix FTBFS
+  Resolves: rhbz#2100647
+
 * Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 4.1.1-13
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
   Related: rhbz#1991688