1 files changed, 18 insertions, 1 deletions
diff --git a/src/main/java/org/zwobble/mammoth/internal/documents/Run.java b/src/main/java/org/zwobble/mammoth/internal/documents/Run.java
index cb8bf1f..d1de84a 100644
--- a/src/main/java/org/zwobble/mammoth/internal/documents/Run.java
+++ b/src/main/java/org/zwobble/mammoth/internal/documents/Run.java
@@ -3,7 +3,7 @@ package org.zwobble.mammoth.internal.documents;
 import java.util.List;
 import java.util.Optional;
 
-public class Run implements DocumentElement, HasChildren {
+public class Run implements DocumentElement, HasChildren<Run> {
     private final Optional<String> highlight;
     private final boolean isBold;
     private final boolean isItalic;
@@ -75,11 +75,28 @@ public class Run implements DocumentElement, HasChildren {
         return style;
     }
 
+    @Override
     public List<DocumentElement> getChildren() {
         return children;
     }
 
     @Override
+    public Run replaceChildren(List<DocumentElement> newChildren) {
+        return new Run(
+            this.highlight,
+            this.isBold,
+            this.isItalic,
+            this.isUnderline,
+            this.isStrikethrough,
+            this.isAllCaps,
+            this.isSmallCaps,
+            this.verticalAlignment,
+            this.style,
+            newChildren
+        );
+    }
+
+    @Override
     public <T, U> T accept(DocumentElementVisitor<T, U> visitor, U context) {
         return visitor.visit(this, context);
     }