diff --git a/src/Make.inc b/src/Make.inc
index 9797dc9421..533f3b039b 100644
--- a/src/Make.inc
+++ b/src/Make.inc
@@ -22,9 +22,10 @@ ifeq ($(GOOS),darwin)
 else ifeq ($(GOOS),freebsd)
 else ifeq ($(GOOS),linux)
 else ifeq ($(GOOS),nacl)
+else ifeq ($(GOOS),tiny)
 else ifeq ($(GOOS),windows)
 else
-$(error Invalid $$GOOS '$(GOOS)'; must be darwin, freebsd, linux, nacl, or windows)
+$(error Invalid $$GOOS '$(GOOS)'; must be darwin, freebsd, linux, nacl, tiny, or windows)
 endif
 
 ifeq ($(GOARCH),)