diff --git a/src/iec61850/server/mms_mapping/reporting.c b/src/iec61850/server/mms_mapping/reporting.c
index 22c58420..74398794 100644
--- a/src/iec61850/server/mms_mapping/reporting.c
+++ b/src/iec61850/server/mms_mapping/reporting.c
@@ -1627,8 +1627,6 @@ Reporting_RCBWriteAccessHandler(MmsMapping* self, ReportControl* rc, char* eleme
 {
     MmsDataAccessError retVal = DATA_ACCESS_ERROR_SUCCESS;
 
-    ReportControl_lockNotify(rc);
-
     bool resvTmsAccess = false;
 
     /* check reservation timeout for buffered RCBs */
@@ -1676,6 +1674,8 @@ Reporting_RCBWriteAccessHandler(MmsMapping* self, ReportControl* rc, char* eleme
         }
     }
 
+    ReportControl_lockNotify(rc);
+
     if ((rc->reserved) && (rc->clientConnection != connection)) {
         retVal = DATA_ACCESS_ERROR_TEMPORARILY_UNAVAILABLE;
         goto exit_function;