diff --git a/tests/testthat/test-image.R b/tests/testthat/test-image.R
index 587e7fe..f35a5b4 100644
--- a/tests/testthat/test-image.R
+++ b/tests/testthat/test-image.R
@@ -176,7 +176,7 @@ test_that("transposeImg, SpatRasterImage method", {
     expect_equal(d[2], 13)
 
     # Save to file
-    fn <- normalizePath(file.path(getwd(), "foo.tif"))
+    fn <- normalizePath(file.path(getwd(), "foo.tif"), mustWork = FALSE)
     img_t3 <- transposeImg(img, filename = fn)
     expect_equal(dim(img)[1:2], dim(img_t3)[2:1])
     expect_equal(imgSource(img_t3), fn)
@@ -200,7 +200,7 @@ test_that("mirrorImg, SpatRasterImage method", {
     expect_equal(imgRaster(img_m2)[10,3,2][[1]], 190)
 
     # Use filename
-    fn <- normalizePath(file.path(getwd(), "foo.tif"))
+    fn <- normalizePath(file.path(getwd(), "foo.tif"), mustWork = FALSE)
     img_m3 <- mirrorImg(img, filename = "foo.tif")
     expect_equal(imgSource(img_m3), fn)
     expect_true(file.exists(fn))
diff --git a/tests/testthat/test-subset.R b/tests/testthat/test-subset.R
index 30b8b68..8ecebe9 100644
--- a/tests/testthat/test-subset.R
+++ b/tests/testthat/test-subset.R
@@ -134,7 +134,7 @@ inds <- c(rep(TRUE, ncol(sfe1)), not_singleton)
 
 test_that("Images are cropped after subsetting, multiple samples", {
     sfe3 <- sfe[,inds]
-    cg <- st_centroid(spotPoly(sfe3, sample_id = "all"))
+    cg <- st_centroid(st_geometry(spotPoly(sfe3, sample_id = "all")))
     nCounts <- Matrix::colSums(counts(sfe3))
     # For sample 1
     img1 <- getImg(sfe3, sample_id = "ob") |> imgRaster()