diff --git a/kernel/model/outline.go b/kernel/model/outline.go
index 0067b93dc..61cbcce09 100644
--- a/kernel/model/outline.go
+++ b/kernel/model/outline.go
@@ -71,12 +71,6 @@ func (tx *Transaction) doMoveOutlineHeading(operation *Operation) (ret *TxErr) {
 			}
 		}
 
-		if targetNode == heading.Previous {
-			if previousHeading.HeadingLevel >= heading.HeadingLevel {
-				return
-			}
-		}
-
 		diffLevel := heading.HeadingLevel - previousHeading.HeadingLevel
 		heading.HeadingLevel = previousHeading.HeadingLevel