diff --git a/src/iec61850/client/ied_connection.c b/src/iec61850/client/ied_connection.c
index 26ab5e8..b81ef8f 100644
--- a/src/iec61850/client/ied_connection.c
+++ b/src/iec61850/client/ied_connection.c
@@ -2108,6 +2108,7 @@ IedConnection_readDataSetValues(IedConnection self, IedClientError* error, const
     else {
         MmsValue* dataSetValues = ClientDataSet_getValues(dataSet);
         MmsValue_update(dataSetValues, dataSetVal);
+        MmsValue_delete(dataSetVal);
     }
 
 exit_function: