diff --git a/libmachine/mcnutils/utils_test.go b/libmachine/mcnutils/utils_test.go
index b7693382dd..036e2b72f4 100644
--- a/libmachine/mcnutils/utils_test.go
+++ b/libmachine/mcnutils/utils_test.go
@@ -67,3 +67,35 @@ func TestGetUsername(t *testing.T) {
 		t.Fatalf("expected username %s; received %s", currentUser, username)
 	}
 }
+
+func TestGenerateRandomID(t *testing.T) {
+	id := GenerateRandomID()
+
+	if len(id) != 64 {
+		t.Fatalf("Id returned is incorrect: %s", id)
+	}
+}
+
+func TestShortenId(t *testing.T) {
+	id := GenerateRandomID()
+	truncID := TruncateID(id)
+	if len(truncID) != 12 {
+		t.Fatalf("Id returned is incorrect: truncate on %s returned %s", id, truncID)
+	}
+}
+
+func TestShortenIdEmpty(t *testing.T) {
+	id := ""
+	truncID := TruncateID(id)
+	if len(truncID) > len(id) {
+		t.Fatalf("Id returned is incorrect: truncate on %s returned %s", id, truncID)
+	}
+}
+
+func TestShortenIdInvalid(t *testing.T) {
+	id := "1234"
+	truncID := TruncateID(id)
+	if len(truncID) != len(id) {
+		t.Fatalf("Id returned is incorrect: truncate on %s returned %s", id, truncID)
+	}
+}
diff --git a/mk/build.mk b/mk/build.mk
index bc63b48c44..9f0674f574 100644
--- a/mk/build.mk
+++ b/mk/build.mk
@@ -6,7 +6,7 @@ build-simple: $(PREFIX)/bin/$(PKG_NAME)
 
 # XXX building with -a fails in debug (with -N -l) ????
 $(PREFIX)/bin/$(PKG_NAME): $(shell find . -type f -name '*.go')
-	go build -o $@ $(VERBOSE_GO) -tags "$(BUILDTAGS)" -ldflags "$(GO_LDFLAGS)" $(GO_GCFLAGS) ./main.go
+	@go build -o $@ $(VERBOSE_GO) -tags "$(BUILDTAGS)" -ldflags "$(GO_LDFLAGS)" $(GO_GCFLAGS) ./main.go
 
 # Cross-build: careful, does always rebuild!
 build-x: clean
diff --git a/test/integration/core/core-commands.bats b/test/integration/core/core-commands.bats
index 3010e3b702..a654225eae 100644
--- a/test/integration/core/core-commands.bats
+++ b/test/integration/core/core-commands.bats
@@ -23,7 +23,7 @@ load ${BASE_TEST_DIR}/helpers.bash
 }
 
 @test "$DRIVER: has status 'started' appearing in ls" {
-  run machine ls --filter state=Running
+  run machine ls -q --filter state=Running
   echo ${output}
   [ "$status" -eq 0  ]
   [[ ${lines[0]} == "$NAME" ]]
@@ -32,7 +32,7 @@ load ${BASE_TEST_DIR}/helpers.bash
 @test "$DRIVER: create with same name again fails" {
   run machine create -d $DRIVER $NAME
   echo ${output}
-  [ "$status" -eq 0  ]
+  [ "$status" -eq 1  ]
   [[ ${lines[0]} == "Error creating machine: Machine $NAME already exists" ]]
 }