diff --git a/theme/default/display.css b/theme/default/display.css
index 35bf7edcb1..15b5769197 100644
--- a/theme/default/display.css
+++ b/theme/default/display.css
@@ -547,7 +547,7 @@ form {
 
 /* ----- OpenID Form -----*/
 
-input.openid_url {
+input#openid_url {
    background: url(login-bg.gif) no-repeat;
    background-color: #fff;
    background-position: 0 50%;
diff --git a/theme/stoica/display.css b/theme/stoica/display.css
index 16e124fb38..9dd861c939 100644
--- a/theme/stoica/display.css
+++ b/theme/stoica/display.css
@@ -558,7 +558,7 @@ form {
 
 /* ----- OpenID Form -----*/
 
-input.openid_url {
+input#openid_url {
    background: url(login-bg.gif) no-repeat;
    background-color: #fff;
    background-position: 0 50%;