diff --git a/ASCOfficeDocxFile2/BinWriter/BinWriters.h b/ASCOfficeDocxFile2/BinWriter/BinWriters.h
index 78f2843281..79f6681062 100644
--- a/ASCOfficeDocxFile2/BinWriter/BinWriters.h
+++ b/ASCOfficeDocxFile2/BinWriter/BinWriters.h
@@ -2473,7 +2473,7 @@ namespace BinDocxRW
 						WriteComment(OOX::et_w_commentRangeEnd, pCommentRangeEnd->m_oId);
 						break;
 					}
-				/*case OOX::et_m_oMathPara:
+				case OOX::et_m_oMathPara:
 					{
 						OOX::Logic::COMathPara* pOMathPara = static_cast<OOX::Logic::COMathPara*>(item);
 
@@ -2492,7 +2492,7 @@ namespace BinDocxRW
 						WriteMathArgNodes( pOMath->m_arrItems );
 						m_oBcw.WriteItemEnd(nCurPos);
 						break;
-					}*/
+					}
 				}
 			}
 		};