diff --git a/.travis.yml b/.travis.yml
index a6ad6fb27eaa4..491da6c374ca5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -83,6 +83,10 @@ matrix:
             - valgrind
             - libtool-bin
             - libc6-dbg:i386
+    # S390x build (big endian system)
+    - compiler: gcc
+      env: HOST=s390x-unknown-linux-gnu ECDH=yes RECOVERY=yes EXPERIMENTAL=yes CTIMETEST=
+      arch: s390x
 
 # We use this to install macOS dependencies instead of the built in `homebrew` plugin,
 # because in xcode earlier than 11 they have a bug requiring updating the system which overall takes ~8 minutes.