diff --git a/browser/app/profile/firefox.js b/browser/app/profile/firefox.js
index 43727f50038..8633f4ea381 100644
--- a/browser/app/profile/firefox.js
+++ b/browser/app/profile/firefox.js
@@ -1519,6 +1519,7 @@ pref("loop.enabled", false);
 #endif
 
 pref("loop.server", "https://loop.services.mozilla.com");
+pref("loop.seenToS", "unseen");
 pref("loop.do_not_disturb", false);
 pref("loop.ringtone", "chrome://browser/content/loop/shared/sounds/Firefox-Long.ogg");
 
diff --git a/browser/components/loop/content/js/panel.js b/browser/components/loop/content/js/panel.js
index 243d9773eef..8b78c1b0dd6 100644
--- a/browser/components/loop/content/js/panel.js
+++ b/browser/components/loop/content/js/panel.js
@@ -113,7 +113,7 @@ loop.panel = (function(_, mozL10n) {
         "privacy_notice_url": "www.mozilla.org/privacy/"
       });
 
-      if (!this.state.seenToS) {
+      if (this.state.seenToS == "unseen") {
         navigator.mozLoop.setLoopCharPref('seenToS', 'seen');
         return React.DOM.p( {className:"terms-service",
                   dangerouslySetInnerHTML:{__html: tosHTML}});
diff --git a/browser/components/loop/content/js/panel.jsx b/browser/components/loop/content/js/panel.jsx
index 71b31d31e2b..2beb237804b 100644
--- a/browser/components/loop/content/js/panel.jsx
+++ b/browser/components/loop/content/js/panel.jsx
@@ -113,7 +113,7 @@ loop.panel = (function(_, mozL10n) {
         "privacy_notice_url": "www.mozilla.org/privacy/"
       });
 
-      if (!this.state.seenToS) {
+      if (this.state.seenToS == "unseen") {
         navigator.mozLoop.setLoopCharPref('seenToS', 'seen');
         return <p className="terms-service"
                   dangerouslySetInnerHTML={{__html: tosHTML}}></p>;
diff --git a/browser/components/loop/test/desktop-local/panel_test.js b/browser/components/loop/test/desktop-local/panel_test.js
index 8953dc1a196..969a243b2c9 100644
--- a/browser/components/loop/test/desktop-local/panel_test.js
+++ b/browser/components/loop/test/desktop-local/panel_test.js
@@ -48,7 +48,7 @@ describe("loop.panel", function() {
         return "en-US";
       },
       setLoopCharPref: sandbox.stub(),
-      getLoopCharPref: sandbox.stub()
+      getLoopCharPref: sandbox.stub().returns("unseen")
     };
 
     document.mozL10n.initialize(navigator.mozLoop);