diff --git a/Makefile b/Makefile
index 72576029aa..8d76a78ea0 100644
--- a/Makefile
+++ b/Makefile
@@ -187,7 +187,7 @@ CROSSPLANE_NAMESPACE = upbound-system
 # - UPTEST_DATASOURCE_PATH (optional), see https://github.com/upbound/uptest#injecting-dynamic-values-and-datasource
 uptest: $(UPTEST) $(KUBECTL) $(KUTTL)
 	@$(INFO) running automated tests
-	@KUBECTL=$(KUBECTL) KUTTL=$(KUTTL) $(UPTEST) e2e "${UPTEST_EXAMPLE_LIST}" --data-source="${UPTEST_DATASOURCE_PATH}" --setup-script=cluster/test/setup.sh --default-conditions="Test" || $(FAIL)
+	@KUBECTL=$(KUBECTL) KUTTL=$(KUTTL) CROSSPLANE_NAMESPACE=$(CROSSPLANE_NAMESPACE) $(UPTEST) e2e "${UPTEST_EXAMPLE_LIST}" --data-source="${UPTEST_DATASOURCE_PATH}" --setup-script=cluster/test/setup.sh --default-conditions="Test" || $(FAIL)
 	@$(OK) running automated tests
 
 uptest-local: