diff --git a/helm.mk b/helm.mk
index ba4267a..9316e6a 100644
--- a/helm.mk
+++ b/helm.mk
@@ -10,15 +10,14 @@ start-helm:
 
 ifdef TEST_MODE
 	@- echo "Testing chart with 'helm template --debug'"
-    @ envsubst < ${HELM_VALUES_FILE} | helm template ${HELM_CHART_NAME} ${HELM_CHART_PATH} --debug --values -
+	@ envsubst < ${HELM_VALUES_FILE} | helm template ${HELM_CHART_NAME} ${HELM_CHART_PATH} --debug --values -
 endif
 
 ifdef NAMESPACE
-	@ K8S_NAMESPACE =: $(NAMESPACE)
+	K8S_NAMESPACE = $$(NAMESPACE)
 endif
 
 ifdef DEBUG_MODE
-
 	@- echo "\n### deploying helm chart with --debug flag"
 	@- echo "-- DEBUG DEPLOYMENT --------------------"
 	@- echo " "