diff --git a/src/pool/test/TestPoolSQL.cc b/src/pool/test/TestPoolSQL.cc
index 48e352305a..8e6fe4ed3f 100644
--- a/src/pool/test/TestPoolSQL.cc
+++ b/src/pool/test/TestPoolSQL.cc
@@ -85,6 +85,8 @@ int TestObjectSQL::select(SqlDB *db)
 
 int TestObjectSQL::insert(SqlDB *db)
 {
+    ostringstream   oss;
+
     int    rc;
     char * sql_text;