diff --git a/src/main/java/org/broad/igv/util/LoginDialog.java b/src/main/java/org/broad/igv/util/LoginDialog.java
index e99d2a271c..8ed8546fab 100644
--- a/src/main/java/org/broad/igv/util/LoginDialog.java
+++ b/src/main/java/org/broad/igv/util/LoginDialog.java
@@ -165,6 +165,7 @@ public void actionPerformed(ActionEvent e) {
                         okButtonActionPerformed(e);
                     }
                 });
+                this.getRootPane().setDefaultButton(okButton);
                 buttonBar.add(okButton, new GridBagConstraints(1, 0, 1, 1, 0.0, 0.0,
                         GridBagConstraints.CENTER, GridBagConstraints.BOTH,
                         new Insets(0, 0, 0, 5), 0, 0));