diff --git a/AppKit/CPSlider.j b/AppKit/CPSlider.j
index d74122c7a..63104618b 100644
--- a/AppKit/CPSlider.j
+++ b/AppKit/CPSlider.j
@@ -178,7 +178,7 @@ CPCircularSlider    = 1;
     if ([self hasThemeState:CPThemeStateCircular])
     {
         var angle = 3*PI_2 - (1.0 - [self doubleValue] - _minValue) / (_maxValue - _minValue) * PI2,
-            radius = CGRectGetWidth(trackRect) / 2.0 - 6.0;
+            radius = CGRectGetWidth(trackRect) / 2.0 - 8.0;
 
         knobRect.origin.x = radius * COS(angle) + CGRectGetMidX(trackRect) - 3.0;
         knobRect.origin.y = radius * SIN(angle) + CGRectGetMidY(trackRect) - 2.0;
diff --git a/AppKit/Themes/Aristo/Resources/CircularSliderBezel.png b/AppKit/Themes/Aristo/Resources/CircularSliderBezel.png
index fca36e39e..56e8d061d 100644
Binary files a/AppKit/Themes/Aristo/Resources/CircularSliderBezel.png and b/AppKit/Themes/Aristo/Resources/CircularSliderBezel.png differ
diff --git a/AppKit/Themes/Aristo/ThemeDescriptors.j b/AppKit/Themes/Aristo/ThemeDescriptors.j
index 4e00f026b..4e896255d 100644
--- a/AppKit/Themes/Aristo/ThemeDescriptors.j
+++ b/AppKit/Themes/Aristo/ThemeDescriptors.j
@@ -467,8 +467,8 @@
 
 + (CPSlider)themedCircularSlider
 {
-    var slider = [[CPSlider alloc] initWithFrame:CGRectMake(0.0, 0.0, 32.0, 32.0)],
-        trackColor = PatternColor([_CPCibCustomResource imageResourceWithName:"circularSliderBezel.png" size:CGSizeMake(32.0, 32.0)]);
+    var slider = [[CPSlider alloc] initWithFrame:CGRectMake(0.0, 0.0, 34.0, 34.0)],
+        trackColor = PatternColor([_CPCibCustomResource imageResourceWithName:"circularSliderBezel.png" size:CGSizeMake(34.0, 34.0)]);
 
     [slider setSliderType:CPCircularSlider];
     [slider setValue:trackColor forThemeAttribute:@"track-color" inState:CPThemeStateCircular];