diff --git a/test/sharness/t0119-prometheus.sh b/test/sharness/t0119-prometheus.sh
index 76720d8b078a..0e00f088ac28 100755
--- a/test/sharness/t0119-prometheus.sh
+++ b/test/sharness/t0119-prometheus.sh
@@ -23,11 +23,11 @@ test_expect_success "collect metrics" '
 test_kill_ipfs_daemon
 
 test_expect_success "filter metrics" '
-  sed -ne "s/^\([a-z0-9_]\+\).*/\1/p" raw_metrics | LC_ALL=C sort > filtered_metrics
+  sed -ne "s/^\([a-z0-9_]\+\).*/\1/p" raw_metrics | LC_ALL=C sort | uniq > filtered_metrics
 '
 
 test_expect_success "make sure metrics haven't changed" '
-  diff -u ../t0119-prometheus-data/prometheus_metrics (sort < filtered_metrics | uniq)
+  diff -u ../t0119-prometheus-data/prometheus_metrics filtered_metrics
 '
 
 # Check what was added by enabling ResourceMgr.Enabled
@@ -50,11 +50,11 @@ test_kill_ipfs_daemon
 
 test_expect_success "filter metrics and find ones added by enabling ResourceMgr" '
   sed -ne "s/^\([a-z0-9_]\+\).*/\1/p" raw_metrics | LC_ALL=C sort > filtered_metrics &&
-  grep -v -x -f ../t0119-prometheus-data/prometheus_metrics filtered_metrics > rcmgr_metrics
+  grep -v -x -f ../t0119-prometheus-data/prometheus_metrics filtered_metrics | LC_ALL=C sort | uniq > rcmgr_metrics
 '
 
 test_expect_success "make sure initial metrics added by setting ResourceMgr.Enabled haven't changed" '
-  diff -u ../t0119-prometheus-data/prometheus_metrics_added_by_enabling_rcmgr (sort < rcmgr_metrics | uniq) 
+  diff -u ../t0119-prometheus-data/prometheus_metrics_added_by_enabling_rcmgr rcmgr_metrics
 '
 
 test_done