diff --git a/Thermo.Active/wwwroot/src/app_modules_thermo/components/svgChart.vue b/Thermo.Active/wwwroot/src/app_modules_thermo/components/svgChart.vue
index 0c0d539c..bdea4737 100644
--- a/Thermo.Active/wwwroot/src/app_modules_thermo/components/svgChart.vue
+++ b/Thermo.Active/wwwroot/src/app_modules_thermo/components/svgChart.vue
@@ -1,6 +1,6 @@
 <template>
 	<div class="chart">
-		<svg :viewBox="`${-2*step} ${-2*step} ${scaleX(maxX) *1.2 + step} ${scaleY(maxY) * 1.2}`">
+		<svg :viewBox="`${-2*step} ${-step} ${scaleX(maxX) *1.2 + step} ${scaleY(maxY) * 1.2}`">
 			<!-- posizione degli assi a 0,0 -->
 			<foreignObject x="-30" :y="scaleY(maxY)*1.06" width="30" height="30">
 				<label>0</label>