diff --git a/tabs/pid_tuning.html b/tabs/pid_tuning.html
index 1f014d8a..f83572bd 100755
--- a/tabs/pid_tuning.html
+++ b/tabs/pid_tuning.html
@@ -186,7 +186,7 @@
 			        <td>
                                     <div class="spacer" style="margin-top: 10px; margin-bottom: 10px;">
                                         <div class="pitch_roll_curve">
-                                            <canvas style="width: 100%; height: 100%"></canvas>
+                                            <canvas height="120px" style="width: 100%; height: 100%"></canvas>
                                         </div>
                                     </div>
 			        </td>
@@ -206,7 +206,7 @@
 			        <td>
                                     <div class="spacer" style="margin-top: 10px; margin-bottom: 10px;">
                                         <div class="yaw_curve">
-                                            <canvas style="width: 100%; height: 100%"></canvas>
+                                            <canvas height="120px" style="width: 100%; height: 100%"></canvas>
                                         </div>
                                     </div>
 			        </td>
@@ -243,4 +243,4 @@
             <a class="refresh" href="#" i18n="pidTuningButtonRefresh"></a>
         </div>
     </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/tabs/pid_tuning.js b/tabs/pid_tuning.js
index dae52042..9c1c23fc 100755
--- a/tabs/pid_tuning.js
+++ b/tabs/pid_tuning.js
@@ -352,13 +352,6 @@ TABS.pid_tuning.initialize = function (callback) {
             $('.pid_tuning .roll_pitch_rate').hide();
         }
 
-        function setCanvasDimensions(canvas) {
-            canvas.width = canvas.parentNode.clientWidth;
-            canvas.height = canvas.parentNode.clientHeight;
-        }
-        setCanvasDimensions($('.pitch_roll_curve canvas').get(0));
-        setCanvasDimensions($('.yaw_curve canvas').get(0));
-
         function drawRateCurve(rateElement, expoElement, canvasElement) {
             var rate = parseFloat(rateElement.val()),
                 expo = parseFloat(expoElement.val()),