diff --git a/source/Lib/CommonLib/TrQuant.cpp b/source/Lib/CommonLib/TrQuant.cpp
index a756ed223e23da328717a8a134aad5401ff0c367..3c4bfcc9cc9b72b095a7bda88d6d4271cd7478f3 100644
--- a/source/Lib/CommonLib/TrQuant.cpp
+++ b/source/Lib/CommonLib/TrQuant.cpp
@@ -122,6 +122,7 @@ TrQuant::~TrQuant()
       xFree( m_mtsCoeffs[i] );
       m_mtsCoeffs[i] = nullptr;
     }
+    delete[] m_mtsCoeffs;
     m_mtsCoeffs = nullptr;
   }
 #endif