diff --git a/imapserver/fuzz_test.go b/imapserver/fuzz_test.go
index dad691a..66353e4 100644
--- a/imapserver/fuzz_test.go
+++ b/imapserver/fuzz_test.go
@@ -62,8 +62,13 @@ func FuzzServer(f *testing.F) {
 	log := mlog.New("imapserver", nil)
 	mox.ConfigStaticPath = filepath.FromSlash("../testdata/imapserverfuzz/mox.conf")
 	mox.MustLoadConfig(true, false)
+	store.Close() // May not be open, we ignore error.
 	dataDir := mox.ConfigDirPath(mox.Conf.Static.DataDir)
 	os.RemoveAll(dataDir)
+	err := store.Init(ctxbg)
+	if err != nil {
+		f.Fatalf("store init: %v", err)
+	}
 	acc, err := store.OpenAccount(log, "mjl", false)
 	if err != nil {
 		f.Fatalf("open account: %v", err)
diff --git a/smtpserver/fuzz_test.go b/smtpserver/fuzz_test.go
index 1a075a5..f03f710 100644
--- a/smtpserver/fuzz_test.go
+++ b/smtpserver/fuzz_test.go
@@ -35,8 +35,14 @@ func FuzzServer(f *testing.F) {
 	mox.Context = ctxbg
 	mox.ConfigStaticPath = filepath.FromSlash("../testdata/smtpserverfuzz/mox.conf")
 	mox.MustLoadConfig(true, false)
+	store.Close() // May not be open, we ignore error.
 	dataDir := mox.ConfigDirPath(mox.Conf.Static.DataDir)
 	os.RemoveAll(dataDir)
+	err := store.Init(ctxbg)
+	if err != nil {
+		f.Fatalf("store init: %v", err)
+	}
+
 	acc, err := store.OpenAccount(log, "mjl", false)
 	if err != nil {
 		f.Fatalf("open account: %v", err)