diff --git a/backend/cache/cache_internal_test.go b/backend/cache/cache_internal_test.go
index 1cf6603e6..d5351899a 100644
--- a/backend/cache/cache_internal_test.go
+++ b/backend/cache/cache_internal_test.go
@@ -1034,7 +1034,7 @@ func (r *run) updateObjectRemote(t *testing.T, f fs.Fs, remote string, data1 []b
 	objInfo1 := object.NewStaticObjectInfo(remote, time.Now(), int64(len(data1)), true, nil, f)
 	objInfo2 := object.NewStaticObjectInfo(remote, time.Now(), int64(len(data2)), true, nil, f)
 
-	obj, err = f.Put(context.Background(), in1, objInfo1)
+	_, err = f.Put(context.Background(), in1, objInfo1)
 	require.NoError(t, err)
 	obj, err = f.NewObject(context.Background(), remote)
 	require.NoError(t, err)
diff --git a/backend/chunker/chunker_internal_test.go b/backend/chunker/chunker_internal_test.go
index 14e2e6f85..5b20fcb78 100644
--- a/backend/chunker/chunker_internal_test.go
+++ b/backend/chunker/chunker_internal_test.go
@@ -495,11 +495,11 @@ func testPreventCorruption(t *testing.T, f *Fs) {
 	billyChunk4Name := billyChunkName(4)
 	_, err = f.base.NewObject(ctx, billyChunk4Name)
 	require.NoError(t, err)
-	billyChunk4, err := f.NewObject(ctx, billyChunk4Name)
+	_, err = f.NewObject(ctx, billyChunk4Name)
 	assertOverlapError(err)
 
 	f.opt.FailHard = false
-	billyChunk4, err = f.NewObject(ctx, billyChunk4Name)
+	billyChunk4, err := f.NewObject(ctx, billyChunk4Name)
 	assert.NoError(t, err)
 	require.NotNil(t, billyChunk4)