diff --git a/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue b/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue
index 32ade807..32b4808b 100644
--- a/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue
@@ -1054,7 +1054,7 @@ export default {
         this.stack.studyId = dicomSeries.studyId
         this.stack.seriesNumber = dicomSeries.seriesNumber
         this.stack.imageIds = dicomSeries.imageIds
-        this.stack.currentImageIdIndex = dicomSeries.imageIdIndex && dicomSeries.imageIdIndex < dicomSeries.imageIds.length - 1 ? dicomSeries.imageIdIndex : 0
+        this.stack.currentImageIdIndex = dicomSeries.imageIdIndex && dicomSeries.imageIdIndex < dicomSeries.imageIds.length ? dicomSeries.imageIdIndex : 0
         this.stack.imageIdIndex = dicomSeries.imageIdIndex
         this.stack.firstImageLoading = true
         this.stack.visitTaskId = dicomSeries.visitTaskId
diff --git a/src/views/trials/trials-panel/reading/dicoms/customize/CustomizeDicomCanvas.vue b/src/views/trials/trials-panel/reading/dicoms/customize/CustomizeDicomCanvas.vue
index 6d0f7af5..319140db 100644
--- a/src/views/trials/trials-panel/reading/dicoms/customize/CustomizeDicomCanvas.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/customize/CustomizeDicomCanvas.vue
@@ -1038,7 +1038,7 @@ export default {
         this.stack.studyId = dicomSeries.studyId
         this.stack.seriesNumber = dicomSeries.seriesNumber
         this.stack.imageIds = dicomSeries.imageIds
-        this.stack.currentImageIdIndex = dicomSeries.imageIdIndex && dicomSeries.imageIdIndex < dicomSeries.imageIds.length - 1 ? dicomSeries.imageIdIndex : 0
+        this.stack.currentImageIdIndex = dicomSeries.imageIdIndex && dicomSeries.imageIdIndex < dicomSeries.imageIds.length ? dicomSeries.imageIdIndex : 0
         this.stack.imageIdIndex = dicomSeries.imageIdIndex
         this.stack.firstImageLoading = true
         this.stack.visitTaskId = dicomSeries.visitTaskId