diff --git a/libreswan-3.30-s390x.patch b/libreswan-3.30-s390x.patch
new file mode 100644
index 0000000..a229d8a
--- /dev/null
+++ b/libreswan-3.30-s390x.patch
@@ -0,0 +1,21 @@
+commit 8b067b47b1e2306c83bed49ecada1bddfb1c1a38
+Author: Paul Wouters <pwouters@redhat.com>
+Date:   Fri Feb 14 15:22:21 2020 -0500
+
+    pluto: fixup: 'incl' may be used uninitialized in init_virtual_ip()
+    
+    For some reason, only the s390x compiler complains.
+
+diff --git a/programs/pluto/virtual.c b/programs/pluto/virtual.c
+index ce94d5a5ee..74d77a3ab0 100644
+--- a/programs/pluto/virtual.c
++++ b/programs/pluto/virtual.c
+@@ -172,7 +172,7 @@ void init_virtual_ip(const char *private_list)
+ 			if (next == NULL)
+ 				next = str + strlen(str);
+ 
+-			bool incl;
++			bool incl = FALSE;
+ 			if (read_subnet(str, next - str,
+ 					 &(private_net_incl[i_incl]),
+ 					 &(private_net_excl[i_excl]),
diff --git a/libreswan.spec b/libreswan.spec
index e05cdd7..a6455d6 100644
--- a/libreswan.spec
+++ b/libreswan.spec
@@ -44,6 +44,8 @@ Source2: https://download.libreswan.org/cavs/ikev1_psk.fax.bz2
 Source3: https://download.libreswan.org/cavs/ikev2.fax.bz2
 %endif
 
+Patch1: libreswan-3.30-s390x.patch
+
 Requires(post): bash coreutils systemd
 Requires(preun): systemd
 Requires(postun): systemd
@@ -99,6 +101,7 @@ Libreswan is based on Openswan-2.6.38 which in turn is based on FreeS/WAN-2.04
 
 %prep
 %setup -q -n libreswan-%{version}%{?prever}
+%patch1 -p1
 # Fedora should really figure this versioning out itself, not burden upstream
 sed -i "s:/usr/bin/python:/usr/bin/python3:" testing/cert_verify/usage_test
 sed -i "s:/usr/bin/python:/usr/bin/python3:" testing/pluto/ikev1-01-fuzzer/cve-2015-3204.py