1 files changed, 3 insertions, 1 deletions
diff --git a/mailnews/compose/src/nsSmtpProtocol.cpp b/mailnews/compose/src/nsSmtpProtocol.cpp
index 54d1e6f64..04347c1d0 100644
--- a/mailnews/compose/src/nsSmtpProtocol.cpp
+++ b/mailnews/compose/src/nsSmtpProtocol.cpp
@@ -2261,10 +2261,12 @@ nsSmtpProtocol::GetUsernamePassword(nsACString &aUsername,
     nsCString hostname;
     rv = smtpServer->GetHostname(hostname);
     NS_ENSURE_SUCCESS(rv, rv);
+    nsAutoString hostnameUTF16;
+    CopyASCIItoUTF16(hostname, hostnameUTF16);
 
     const char16_t *formatStrings[] =
     {
-      NS_ConvertASCIItoUTF16(hostname).get(),
+      hostnameUTF16.get(),
       nullptr
     };