diff --git a/templates/partials/sparkline.html b/templates/partials/sparkline.html
index c9039cf..c4bf814 100644
--- a/templates/partials/sparkline.html
+++ b/templates/partials/sparkline.html
@@ -57,11 +57,15 @@
         {% endfor %}
 
         {% for pos, message in plot_labels %}
-        <rect 
-            x="{{ (pos * vb_width) - (stroke_width/2) + margin }}" 
-            y="{{ 0 }}" 
-            width="{{ stroke_width }}" 
-            height="{{ vb_height + margin }}"
+            {% set x = (pos * vb_width) - (stroke_width/2) + margin %}
+            {% set y = 0 %}
+            {% set width = stroke_width %}
+            {% set height = vb_height + margin %}
+        <rect
+            x="{{ x | round(precision) }}" 
+            y="{{ y | round(precision) }}" 
+            width="{{ width | round(precision) }}" 
+            height="{{ height | round(precision) }}"
             class="plot_point"
             data-message="{{ message }}"
             fill-opacity="0%"></rect>