diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index 3d305814b9..e00d7d2b61 100755
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -711,8 +711,7 @@ test_expect_success 'checking out a commit after submodule removal needs manual
 	git submodule update &&
 	git checkout -q HEAD^ 2>actual &&
 	git checkout -q master 2>actual &&
-	echo "warning: unable to rmdir submod: Directory not empty" >expected &&
-	test_i18ncmp expected actual &&
+	test_i18ngrep "^warning: unable to rmdir submod:" actual &&
 	git status -s submod >actual &&
 	echo "?? submod/" >expected &&
 	test_cmp expected actual &&
diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index e3c8c2c1b8..e3290aafe7 100755
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -446,8 +446,7 @@ test_expect_success 'checking out a commit before submodule moved needs manual u
 	git mv sub sub2 &&
 	git commit -m "moved sub to sub2" &&
 	git checkout -q HEAD^ 2>actual &&
-	echo "warning: unable to rmdir sub2: Directory not empty" >expected &&
-	test_i18ncmp expected actual &&
+	test_i18ngrep "^warning: unable to rmdir sub2:" actual &&
 	git status -s sub2 >actual &&
 	echo "?? sub2/" >expected &&
 	test_cmp expected actual &&