diff --git a/tests/testthat/test-add_qc_metrics.R b/tests/testthat/test-add_qc_metrics.R
index 7941a551..3d3ee568 100644
--- a/tests/testthat/test-add_qc_metrics.R
+++ b/tests/testthat/test-add_qc_metrics.R
@@ -10,5 +10,6 @@ test_that(
         # [1] "scran_discard"                   "scran_low_lib_size"              "scran_low_n_features"
         # [4] "scran_high_subsets_Mito_percent" "edge_spot"                       "edge_distance"
         # [7] "scran_low_lib_size_edge"
+        rm(spe_qc)
     }
 )