diff --git a/tests/generic/386 b/tests/generic/386
index 0c44c80e..1291dae0 100755
--- a/tests/generic/386
+++ b/tests/generic/386
@@ -58,12 +58,12 @@ _require_scratch
 # Make sure the hard limits reported are what was set.
 # It is entirely too clever...
 # It exploits the fact that we've set the soft and hard limits to
-# the same value, and as a result the value in the fourth field in
+# the same value, and as a result the value in the second field in
 # both the "df" and the "report" output.  For "report", the line we're
 # interested in contains our project name in the first field.  For "df"
 # it contains our project directory in the last field.
 # But if the device name is too long, the "df" output is broke into two
-# lines, the fourth field is not correct, so take $(NF-2) of "df"
+# lines, the second field is not correct, so take $(NF-4) of "df"
 _filter_quota_rpt() {
 	awk '
 	BEGIN {
@@ -89,7 +89,7 @@ _filter_quota_rpt() {
 			bsize = byte_size($4);
 		} else if ($NF ~ proj_dir) {
 			# this is the "df" output
-			bsize = byte_size($(NF-2));
+			bsize = byte_size($NF-4));
 		} else {
 			next;
 		}