diff --git a/src/pool/PoolObjectSQL.cc b/src/pool/PoolObjectSQL.cc
index c00a95bd4e..da46973739 100644
--- a/src/pool/PoolObjectSQL.cc
+++ b/src/pool/PoolObjectSQL.cc
@@ -223,6 +223,8 @@ int PoolObjectSQL::replace_template(
         return -1;
     }
 
+    delete old_tmpl;
+
     return 0;
 }