diff --git a/kernel/model/outline.go b/kernel/model/outline.go
index b3ce1aa3c..2b6c54dc8 100644
--- a/kernel/model/outline.go
+++ b/kernel/model/outline.go
@@ -94,6 +94,9 @@ func (tx *Transaction) doMoveOutlineHeading(operation *Operation) (ret *TxErr) {
 				targetNode = heading.Previous
 			}
 		}
+		if targetNode.ID == heading.ID {
+			targetNode = heading.Previous
+		}
 
 		diffLevel := heading.HeadingLevel - previousHeading.HeadingLevel
 		heading.HeadingLevel = previousHeading.HeadingLevel