diff --git a/Makefile.validation b/Makefile.validation
index a26e053c8..38fa32e56 100644
--- a/Makefile.validation
+++ b/Makefile.validation
@@ -11,7 +11,7 @@ coverage:
 	go tool cover -html=coverage.out -o coverage.html
 
 test:
-	${GO_ENV_VARS} go test --coverpkg=./pkg/...,./cmd/... ${LDFLAGS} `go list ./... | grep "pkg\|cmd"` -race -cover -coverprofile=coverage.out -covermode=atomic
+	${GO_ENV_VARS} LANG="en_US.utf8" go test --coverpkg=./pkg/...,./cmd/... ${LDFLAGS} `go list ./... | grep "pkg\|cmd"` -race -cover -coverprofile=coverage.out -covermode=atomic
 
 # Run tests for pr-validation with writing output to log file
 # Test are different (ginkgo, go testing, etc.) so can't use native ginkgo methods to print junit output.