diff --git a/t/t6046-merge-skip-unneeded-updates.sh b/t/t6046-merge-skip-unneeded-updates.sh
index fcefffcaec..38e24f787c 100755
--- a/t/t6046-merge-skip-unneeded-updates.sh
+++ b/t/t6046-merge-skip-unneeded-updates.sh
@@ -366,7 +366,9 @@ test_expect_success '2c-check: Modify b & add c VS rename b->c' '
 
 		git checkout A^0 &&
 
-		GIT_MERGE_VERBOSITY=3 test_must_fail git merge -s recursive B^0 >out 2>err &&
+		GIT_MERGE_VERBOSITY=3 &&
+		export GIT_MERGE_VERBOSITY &&
+		test_must_fail git merge -s recursive B^0 >out 2>err &&
 
 		test_i18ngrep "CONFLICT (rename/add): Rename b->c" out &&
 		test_i18ngrep ! "Skipped c" out &&
diff --git a/t/t9833-errors.sh b/t/t9833-errors.sh
index 9ba892de7a..277d347012 100755
--- a/t/t9833-errors.sh
+++ b/t/t9833-errors.sh
@@ -26,7 +26,9 @@ test_expect_success 'error handling' '
 	) &&
 	p4 passwd -P newpassword &&
 	(
-		P4PASSWD=badpassword test_must_fail git p4 clone //depot/foo 2>errmsg &&
+		P4PASSWD=badpassword &&
+		export P4PASSWD &&
+		test_must_fail git p4 clone //depot/foo 2>errmsg &&
 		grep -q "failure accessing depot.*P4PASSWD" errmsg
 	)
 '