diff --git a/Makefile b/Makefile
index d90de225f..1603ce214 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ core-dev: generate
 
 # Shorthand for quickly testing the core of Terraform (i.e. "not providers")
 core-test: generate
-	@echo "Testing core packages..." && go test -tags 'core' $(shell go list ./... | grep -v -E 'builtin|vendor')
+	@echo "Testing core packages..." && go test -tags 'core' $(TESTARGS) $(shell go list ./... | grep -v -E 'builtin|vendor')
 
 # Shorthand for building and installing just one plugin for local testing.
 # Run as (for example): make plugin-dev PLUGIN=provider-aws