diff --git a/modes/preclinical-4d/src/segmentationButtons.ts b/modes/preclinical-4d/src/segmentationButtons.ts
index a179dfecc2d..4a4e1a89d98 100644
--- a/modes/preclinical-4d/src/segmentationButtons.ts
+++ b/modes/preclinical-4d/src/segmentationButtons.ts
@@ -119,7 +119,7 @@ const toolbarButtons: Button[] = [
               min: 0,
               max: 100,
               step: 0.5,
-              values: [2, 50],
+              value: [2, 50],
               commands: {
                 commandName: 'setThresholdRange',
                 commandOptions: {
diff --git a/modes/tmtv/src/toolbarButtons.js b/modes/tmtv/src/toolbarButtons.js
index b180d974ec8..26948697b1a 100644
--- a/modes/tmtv/src/toolbarButtons.js
+++ b/modes/tmtv/src/toolbarButtons.js
@@ -264,7 +264,7 @@ const toolbarButtons = [
               min: 0,
               max: 50,
               step: 0.5,
-              values: [2.5, 50],
+              value: [2.5, 50],
               condition: ({ options }) =>
                 options.find(option => option.id === 'dynamic-mode').value === 'ThresholdRange',
               commands: {