diff --git a/packages/core/examples/volumeAPI/index.ts b/packages/core/examples/volumeAPI/index.ts
index 2cacd37b46..1462c0208d 100644
--- a/packages/core/examples/volumeAPI/index.ts
+++ b/packages/core/examples/volumeAPI/index.ts
@@ -274,8 +274,8 @@ addDropdownToToolbar({
 
 addSliderToToolbar({
   title: 'Slab Thickness',
-  range: [0, 50],
-  defaultValue: 0,
+  range: [0.05, 50],
+  defaultValue: 0.05,
   onSelectedValueChange: (value) => {
     const valueAsNumber = Number(value);
 
diff --git a/packages/core/src/RenderingEngine/VolumeViewport.ts b/packages/core/src/RenderingEngine/VolumeViewport.ts
index 8bac859d96..66a4bfb5d6 100644
--- a/packages/core/src/RenderingEngine/VolumeViewport.ts
+++ b/packages/core/src/RenderingEngine/VolumeViewport.ts
@@ -496,7 +496,7 @@ class VolumeViewport extends BaseVolumeViewport {
   public setSlabThickness(slabThickness: number, filterActorUIDs = []): void {
     if (slabThickness < 0.1) {
       // Cannot render zero thickness
-      slabThickness = 0.1;
+      slabThickness = RENDERING_DEFAULTS.MINIMUM_SLAB_THICKNESS;
     }
 
     let actorEntries = this.getActors();