diff --git a/.travis.yml b/.travis.yml
index f7d6999f4..ca2df809f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,9 +20,7 @@ branches:
 env:
   global:
     - GO111MODULE=on
-    - TEST_COVERAGE=stdout
     - GO_METALINTER_THREADS=1
-    - GO_COVER_DIR=_output
     - KUBECONFIG=$HOME/.kube/config
     # set CEPH_CSI_RUN_ALL_TESTS to non-empty to run all tests
     - CEPH_CSI_RUN_ALL_TESTS=true
@@ -83,7 +81,7 @@ jobs:
         - make go-lint
         - make lint-extras
         - make gosec
-        - make go-test
+        - make go-test TEST_COVERAGE=stdout GO_COVER_DIR=_output/
         - make mod-check
 
     - stage: build testing
diff --git a/Makefile b/Makefile
index c18013a1a..d6781b58e 100644
--- a/Makefile
+++ b/Makefile
@@ -74,8 +74,10 @@ all: cephcsi
 test: go-test static-check mod-check
 static-check: check-env go-lint lint-extras gosec
 
+go-test: TEST_COVERAGE ?= $(shell . $(CURDIR)/build.env ; echo $${TEST_COVERAGE})
+go-test: GO_COVER_DIR ?= $(shell . $(CURDIR)/build.env ; echo $${GO_COVER_DIR})
 go-test: check-env
-	./scripts/test-go.sh
+	TEST_COVERAGE=$(TEST_COVERAGE) GO_COVER_DIR=$(GO_COVER_DIR) ./scripts/test-go.sh
 
 mod-check: check-env
 	@echo 'running: go mod verify'
diff --git a/build.env b/build.env
index ecce0c471..4a49c7688 100644
--- a/build.env
+++ b/build.env
@@ -20,6 +20,11 @@ GO111MODULE=on
 GOLANGCI_VERSION=v1.21.0
 GOSEC_VERSION=2.0.0
 
+# "go test" configuration
+# set to stdout or html to enable coverage reporting, disabled by default
+#TEST_COVERAGE=html
+#GO_COVER_DIR=_output/
+
 # helm chart generation, testing and publishing
 HELM_VERSION=v3.1.2
 
diff --git a/scripts/test-go.sh b/scripts/test-go.sh
index 9a567c68d..0cf419fb7 100755
--- a/scripts/test-go.sh
+++ b/scripts/test-go.sh
@@ -30,7 +30,7 @@ for gopackage in ${GOPACKAGES}; do
 	fi
 	if [[ ${TEST_COVERAGE} = "html" && -f cover.out ]]; then
 		mkdir -p coverage
-		fn="coverage/${gopackage////-}.html"
+		fn="${GO_COVER_DIR}/${gopackage////-}.html"
 		echo " * generating coverage html: ${fn}"
 		go tool cover -html=cover.out -o "${fn}"
 	fi