diff --git a/Makefile b/Makefile
index 876c5b36e70..325d4493a61 100644
--- a/Makefile
+++ b/Makefile
@@ -176,7 +176,7 @@ update-beats: update-beats-module update
 .PHONY: update-beats-module
 update-beats-module:
 	go get -d -u $(BEATS_MODULE)@$(BEATS_VERSION)
-	rsync -crv --delete $(shell go list -m -f {{.Dir}} $(BEATS_MODULE))/testing/environments testing/
+	rsync -crv --delete $$(go list -m -f {{.Dir}} $(BEATS_MODULE))/testing/environments testing/
 
 ##############################################################################
 # Kibana synchronisation.