diff --git a/static/js/add_trello.js b/static/js/add_trello.js
index 258bcadd..0804b81e 100644
--- a/static/js/add_trello.js
+++ b/static/js/add_trello.js
@@ -14,7 +14,7 @@ $(function() {
         $(".jumbotron").hide();
         $("integration-settings").text("Loading...");
 
-        token = tokenMatch[1];
+        var token = tokenMatch[1];
         var base = document.getElementById("base-url").getAttribute("href").slice(0, -1);
         var csrf = $('input[name=csrfmiddlewaretoken]').val();
         $.ajax({
diff --git a/static/js/checks.js b/static/js/checks.js
index d58eb330..a0323f94 100644
--- a/static/js/checks.js
+++ b/static/js/checks.js
@@ -252,7 +252,7 @@ $(function () {
         setTimeout(function() {
             e.target.textContent = "copy";
         }, 300);
-    })
+    });
 
     clipboard.on('success', function(e) {
         e.trigger.textContent = "copied!";
diff --git a/static/js/details.js b/static/js/details.js
index 6351be17..88c1d6af 100644
--- a/static/js/details.js
+++ b/static/js/details.js
@@ -70,7 +70,7 @@ $(function () {
             headers: {"X-CSRFToken": token},
             data: {"state": isOn ? "on" : "off"}
         });
-    })
+    });
 
     var statusUrl = document.getElementById("edit-timeout").dataset.statusUrl;
     var lastStatusText = "";
diff --git a/static/js/set-password.js b/static/js/set-password.js
index de30a7b0..37df925f 100644
--- a/static/js/set-password.js
+++ b/static/js/set-password.js
@@ -1,6 +1,6 @@
 $(function () {
-    $pw = $("#password");
-    $meter = $("#meter");
+    var $pw = $("#password");
+    var $meter = $("#meter");
     $pw.on("input", function() {
         var result = zxcvbn($pw.val());
         $meter.attr("class", "score-" + result.score);
diff --git a/static/js/update-timeout-modal.js b/static/js/update-timeout-modal.js
index 3612cac5..c1efe85b 100644
--- a/static/js/update-timeout-modal.js
+++ b/static/js/update-timeout-modal.js
@@ -6,7 +6,7 @@ $(function () {
         if (!code) {
             code = this.dataset.code;
         }
-       
+
         var url = base + "/checks/" + code + "/timeout/";
 
         $("#update-timeout-form").attr("action", url);
@@ -58,7 +58,7 @@ $(function () {
         }
 
         return result;
-    }
+    };
 
     var periodSlider = document.getElementById("period-slider");
     noUiSlider.create(periodSlider, {