diff --git a/Dockerfile b/Dockerfile
index 920b6e3ae..03475b8b3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,6 +21,7 @@ RUN KEYFILE=/usr/share/keyrings/criu-repo-keyring.gpg; \
         crossbuild-essential-armel \
         crossbuild-essential-armhf \
         crossbuild-essential-ppc64el \
+        crossbuild-essential-s390x \
         curl \
         gawk \
         gcc \
@@ -54,7 +55,7 @@ RUN cd /tmp \
 ARG LIBSECCOMP_VERSION
 COPY script/* /tmp/script/
 RUN mkdir -p /opt/libseccomp \
-    && /tmp/script/seccomp.sh "$LIBSECCOMP_VERSION" /opt/libseccomp arm64 armel armhf ppc64le
+    && /tmp/script/seccomp.sh "$LIBSECCOMP_VERSION" /opt/libseccomp arm64 armel armhf ppc64le s390x
 ENV LIBSECCOMP_VERSION=$LIBSECCOMP_VERSION
 ENV LD_LIBRARY_PATH=/opt/libseccomp/lib
 ENV PKG_CONFIG_PATH=/opt/libseccomp/lib/pkgconfig
diff --git a/Makefile b/Makefile
index 4c68ac651..aeb62f8c3 100644
--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@ recvtty sd-helper seccompagent:
 static:
 	$(GO_BUILD_STATIC) -o runc .
 
-releaseall: RELEASE_ARGS := "-a arm64 -a armel -a armhf -a ppc64le"
+releaseall: RELEASE_ARGS := "-a arm64 -a armel -a armhf -a ppc64le -a s390x"
 releaseall: release
 
 release: runcimage
diff --git a/script/lib.sh b/script/lib.sh
index 4000d2a94..9afa0b4cb 100644
--- a/script/lib.sh
+++ b/script/lib.sh
@@ -23,6 +23,9 @@ function set_cross_vars() {
 	ppc64le)
 		HOST=powerpc64le-linux-gnu
 		;;
+	s390x)
+		HOST=s390x-linux-gnu
+		;;
 	*)
 		echo "set_cross_vars: unsupported architecture: $1" >&2
 		exit 1