Index: security/aws-iam-authenticator/Makefile
===================================================================
--- security/aws-iam-authenticator/Makefile
+++ security/aws-iam-authenticator/Makefile
@@ -21,7 +21,7 @@
 
 do-build:
 	cd ${WRKSRC}/${GH_SUBDIR} && \
-		GOPATH=${WRKSRC} go build \
+		${MAKE_ENV} GOPATH=${WRKSRC} go build \
 		./cmd/heptio-authenticator-aws
 
 do-install: