diff --git a/debian.master/config/annotations b/debian.master/config/annotations
index 384918a08118..c58c1efc75f8 100644
--- a/debian.master/config/annotations
+++ b/debian.master/config/annotations
@@ -3901,7 +3901,7 @@ CONFIG_EXFAT_FS                                 policy<{'amd64': 'm', 'arm64': '
 CONFIG_EXPERT                                   policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 'riscv64': 'y', 's390x': 'y'}>
 CONFIG_EXPOLINE                                 policy<{'s390x': 'y'}>
 CONFIG_EXPOLINE_AUTO                            policy<{'s390x': 'y'}>
-CONFIG_EXPOLINE_EXTERN                          policy<{'s390x': 'n'}>
+CONFIG_EXPOLINE_EXTERN                          policy<{'s390x': 'y'}>
 CONFIG_EXPOLINE_FULL                            policy<{'s390x': 'n'}>
 CONFIG_EXPOLINE_OFF                             policy<{'s390x': 'n'}>
 CONFIG_EXPORTFS                                 policy<{'amd64': 'y', 'arm64': 'y', 'armhf': 'y', 'ppc64el': 'y', 'riscv64': 'y', 's390x': 'y'}>
diff --git a/debian/rules.d/2-binary-arch.mk b/debian/rules.d/2-binary-arch.mk
index 1d21ebaa7934..b1201bfc9960 100644
--- a/debian/rules.d/2-binary-arch.mk
+++ b/debian/rules.d/2-binary-arch.mk
@@ -343,6 +343,10 @@ endif
 ifeq ($(build_arch),powerpc)
 	mkdir -p $(hdrdir)/arch/powerpc/lib
 	cp $(builddir)/build-$*/arch/powerpc/lib/*.o $(hdrdir)/arch/powerpc/lib
+endif
+ifeq ($(build_arch),s390)
+	mkdir -p $(hdrdir)/arch/s390/lib/expoline/
+	cp $(builddir)/build-$*/arch/s390/lib/expoline/*.o $(hdrdir)/arch/s390/lib/expoline/
 endif
 	# Copy over scripts/module.lds for building external modules
 	cp $(builddir)/build-$*/scripts/module.lds $(hdrdir)/scripts