diff --git a/git-am.sh b/git-am.sh
index 13c02d6ade..4b157fe5d5 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -250,7 +250,7 @@ else
 	# -s, -u, -k, --whitespace, -3, -C and -p flags are kept
 	# for the resuming session after a patch failure.
 	# -i can and must be given when resuming.
-	echo " $git_apply_opt" >"$dotest/apply_opt_extra"
+	echo " $git_apply_opt" >"$dotest/apply-opt"
 	echo "$threeway" >"$dotest/threeway"
 	echo "$sign" >"$dotest/sign"
 	echo "$utf8" >"$dotest/utf8"
@@ -288,7 +288,7 @@ if test "$(cat "$dotest/threeway")" = t
 then
 	threeway=t
 fi
-git_apply_opt=$(cat "$dotest/apply_opt_extra")
+git_apply_opt=$(cat "$dotest/apply-opt")
 if test "$(cat "$dotest/sign")" = t
 then
 	SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
diff --git a/t/t4252-am-options.sh b/t/t4252-am-options.sh
index 1a1946dd97..3ab9e8e6e3 100755
--- a/t/t4252-am-options.sh
+++ b/t/t4252-am-options.sh
@@ -45,7 +45,6 @@ test_expect_success 'interrupted am -C1 -p2' '
 	rm -rf .git/rebase-apply &&
 	git reset --hard initial &&
 	test_must_fail git am -p2 -C1 "$tm"/am-test-4-? &&
-	cat .git/rebase-apply/apply_opt_extra &&
 	git am --skip &&
 	grep 3 file-1 &&
 	grep "^Three$" file-2