2 files changed, 12 insertions, 0 deletions
diff --git a/src/ooxml/java/org/apache/poi/xssf/streaming/SXSSFSheet.java b/src/ooxml/java/org/apache/poi/xssf/streaming/SXSSFSheet.java
index 7d0b6fc746..1ca6a5f147 100644
--- a/src/ooxml/java/org/apache/poi/xssf/streaming/SXSSFSheet.java
+++ b/src/ooxml/java/org/apache/poi/xssf/streaming/SXSSFSheet.java
@@ -463,6 +463,17 @@ public class SXSSFSheet implements Sheet, Cloneable
     {
         _sh.removeMergedRegion(index);
     }
+    
+    /**
+     * Removes a merged region of cells (hence letting them free)
+     *
+     * @param indices of the regions to unmerge
+     */
+    @Override
+    public void removeMergedRegions(Collection<Integer> indices)
+    {
+        _sh.removeMergedRegions(indices);
+    }
 
     /**
      * Returns the number of merged regions
diff --git a/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFSheet.java b/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFSheet.java
index edc8000a4e..f8be5b0efb 100644
--- a/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFSheet.java
+++ b/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFSheet.java
@@ -1867,6 +1867,7 @@ public class XSSFSheet extends POIXMLDocumentPart implements Sheet {
      *
      * @param indices A set of the regions to unmerge
      */
+    @Override
     public void removeMergedRegions(Collection<Integer> indices) {
         if (!worksheet.isSetMergeCells()) return;