diff --git a/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_parallel_pos.ksh b/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_parallel_pos.ksh
index 60088e6dd97..be3344326e9 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_parallel_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zpool_import/zpool_import_parallel_pos.ksh
@@ -114,7 +114,7 @@ wait
 parallel_time=$SECONDS
 log_note "asyncronously imported 4 pools in $parallel_time seconds"
 
-log_must test $parallel_time -lt $(($sequential_time / 2))
+log_must test $parallel_time -lt $(($sequential_time * 3 / 4))
 
 #
 # export pools with import delay injectors
@@ -133,6 +133,6 @@ log_must zpool import -a -d $DEVICE_DIR -f
 parallel_time=$SECONDS
 log_note "asyncronously imported 4 pools in $parallel_time seconds"
 
-log_must test $parallel_time -lt $(($sequential_time / 2))
+log_must test $parallel_time -lt $(($sequential_time * 3 / 4))
 
 log_pass "Pool imports occur in parallel"