diff --git a/frontend/src/components/TrainingUnitSectionsEditor.jsx b/frontend/src/components/TrainingUnitSectionsEditor.jsx
index c0cf4c3..e7fa968 100644
--- a/frontend/src/components/TrainingUnitSectionsEditor.jsx
+++ b/frontend/src/components/TrainingUnitSectionsEditor.jsx
@@ -773,7 +773,8 @@ export default function TrainingUnitSectionsEditor({
     if (
       typeof onMoveSectionsAcrossSlots === 'function' &&
       sectionToSlot >= 0 &&
-      fromSlot >= 0
+      fromSlot >= 0 &&
+      fromSlot !== sectionToSlot
     ) {
       return { kind: 'crossSlot', fromSi, fromSlot }
     }
@@ -937,7 +938,8 @@ export default function TrainingUnitSectionsEditor({
     if (
       typeof onMoveSectionsAcrossSlots === 'function' &&
       sectionToSlot >= 0 &&
-      fromSlot >= 0
+      fromSlot >= 0 &&
+      fromSlot !== sectionToSlot
     ) {
       onMoveSectionsAcrossSlots({
         fromSlot,
@@ -1011,7 +1013,8 @@ export default function TrainingUnitSectionsEditor({
     if (
       typeof onMoveSectionsAcrossSlots === 'function' &&
       sectionToSlot >= 0 &&
-      fromSlot >= 0
+      fromSlot >= 0 &&
+      fromSlot !== sectionToSlot
     ) {
       onMoveSectionsAcrossSlots({
         fromSlot,