diff --git a/Makefile b/Makefile
index 461384d4..4fda3d6a 100644
--- a/Makefile
+++ b/Makefile
@@ -63,6 +63,8 @@ else ifeq ($(LOCAL_ARCH),arm64)
     TARGET_ARCH ?= arm64
 else ifeq ($(shell echo $(LOCAL_ARCH) | head -c 4),armv)
     TARGET_ARCH ?= arm
+else ifeq ($(LOCAL_ARCH),s390x)
+    TARGET_ARCH ?= s390x
 else
     $(error This system's architecture $(LOCAL_ARCH) isn't supported)
 endif
@@ -291,4 +293,4 @@ vet:
 
 .PHONY: goimports
 goimports:
-	for d in $$(go list -mod=readonly -f '{{.Dir}}' -a ./... | fgrep -v tunnelrpc) ; do goimports -format-only -local github.com/cloudflare/cloudflared -w $$d ; done
\ No newline at end of file
+	for d in $$(go list -mod=readonly -f '{{.Dir}}' -a ./... | fgrep -v tunnelrpc) ; do goimports -format-only -local github.com/cloudflare/cloudflared -w $$d ; done