diff --git a/src/common/backend/pgxc_single/pool/poolmgr.cpp b/src/common/backend/pgxc_single/pool/poolmgr.cpp
index 628c713ab..575a33bd5 100644
--- a/src/common/backend/pgxc_single/pool/poolmgr.cpp
+++ b/src/common/backend/pgxc_single/pool/poolmgr.cpp
@@ -669,13 +669,13 @@ char* session_options(void)
 
         char *rawString = strdup(value);
         SplitIdentifierString(rawString, ',', &value_list);
-        free(rawString);
         foreach (l, value_list) {
             char* value = (char*)lfirst(l);
             appendStringInfoString(&options, value);
             if (lnext(l))
                 appendStringInfoChar(&options, ',');
         }
+        free(rawString);
 
         list_free_ext(value_list);
     }