diff --git a/Makefile b/Makefile
index 1ce9b8f5f..3b340ddbb 100644
--- a/Makefile
+++ b/Makefile
@@ -90,10 +90,17 @@ bootstrap: ## Download and install all go dependencies (+ prep tooling in the ./
 .PHONY: lint
 lint: ## Run gofmt + golangci lint checks
 	$(call title,Running linters)
+	# ensure there are no go fmt differences
 	@printf "files with gofmt issues: [$(shell gofmt -l -s .)]\n"
 	@test -z "$(shell gofmt -l -s .)"
+
+	# run all golangci-lint rules
 	$(LINTCMD)
 
+	# go tooling does not play well with certain filename characters, ensure the common cases don't result in future "go get" failures
+	$(eval MALFORMED_FILENAMES := $(shell find . | grep -e ':'))
+	@bash -c "[[ '$(MALFORMED_FILENAMES)' == '' ]] || (printf '\nfound unsupported filename characters:\n$(MALFORMED_FILENAMES)\n\n' && false)"
+
 .PHONY: lint-fix
 lint-fix: ## Auto-format all source code + run golangci lint fixers
 	$(call title,Running lint fixers)
diff --git a/test/acceptance/deb.sh b/test/acceptance/deb.sh
index f73b45b38..ef540f4e9 100755
--- a/test/acceptance/deb.sh
+++ b/test/acceptance/deb.sh
@@ -7,8 +7,9 @@ TEST_IMAGE=$3
 
 TEST_TYPE=deb
 WORK_DIR=`mktemp -d -t "imgbom-acceptance-test-${TEST_TYPE}-XXXXXX"`
-REPORT=${WORK_DIR}/acceptance-${TEST_TYPE}-${TEST_IMAGE}.json
-GOLDEN_REPORT=${ACC_DIR}/test-fixtures/acceptance-${TEST_IMAGE}.json
+NORMAL_TEST_IMAGE=$(echo ${TEST_IMAGE} | tr ':' '-' )
+REPORT=${WORK_DIR}/acceptance-${TEST_TYPE}-${NORMAL_TEST_IMAGE}.json
+GOLDEN_REPORT=${ACC_DIR}/test-fixtures/acceptance-${NORMAL_TEST_IMAGE}.json
 
 # check if tmp dir was created
 if [[ ! "${WORK_DIR}" || ! -d "${WORK_DIR}" ]]; then
diff --git a/test/acceptance/mac.sh b/test/acceptance/mac.sh
index ea0d52cd3..111dcc313 100755
--- a/test/acceptance/mac.sh
+++ b/test/acceptance/mac.sh
@@ -8,8 +8,9 @@ TEST_IMAGE=$3
 TEST_IMAGE_TAR=/tmp/image.tar
 TEST_TYPE=mac
 WORK_DIR=`mktemp -d -t "imgbom-acceptance-test-${TEST_TYPE}-XXXXXX"`
-REPORT=${WORK_DIR}/acceptance-${TEST_TYPE}-${TEST_IMAGE}.json
-GOLDEN_REPORT=${ACC_DIR}/test-fixtures/acceptance-${TEST_IMAGE}.json
+NORMAL_TEST_IMAGE=$(echo ${TEST_IMAGE} | tr ':' '-' )
+REPORT=${WORK_DIR}/acceptance-${TEST_TYPE}-${NORMAL_TEST_IMAGE}.json
+GOLDEN_REPORT=${ACC_DIR}/test-fixtures/acceptance-${NORMAL_TEST_IMAGE}.json
 
 # check if tmp dir was created
 if [[ ! "${WORK_DIR}" || ! -d "${WORK_DIR}" ]]; then
diff --git a/test/acceptance/rpm.sh b/test/acceptance/rpm.sh
index 5c9e39034..ee74141f6 100755
--- a/test/acceptance/rpm.sh
+++ b/test/acceptance/rpm.sh
@@ -7,8 +7,9 @@ TEST_IMAGE=$3
 
 TEST_TYPE=rpm
 WORK_DIR=`mktemp -d -t "imgbom-acceptance-test-${TEST_TYPE}-XXXXXX"`
-REPORT=${WORK_DIR}/acceptance-${TEST_TYPE}-${TEST_IMAGE}.json
-GOLDEN_REPORT=${ACC_DIR}/test-fixtures/acceptance-${TEST_IMAGE}.json
+NORMAL_TEST_IMAGE=$(echo ${TEST_IMAGE} | tr ':' '-' )
+REPORT=${WORK_DIR}/acceptance-${TEST_TYPE}-${NORMAL_TEST_IMAGE}.json
+GOLDEN_REPORT=${ACC_DIR}/test-fixtures/acceptance-${NORMAL_TEST_IMAGE}.json
 
 # check if tmp dir was created
 if [[ ! "${WORK_DIR}" || ! -d "${WORK_DIR}" ]]; then
diff --git a/test/acceptance/test-fixtures/acceptance-centos:8.2.2004.json b/test/acceptance/test-fixtures/acceptance-centos-8.2.2004.json
similarity index 100%
rename from test/acceptance/test-fixtures/acceptance-centos:8.2.2004.json
rename to test/acceptance/test-fixtures/acceptance-centos-8.2.2004.json