diff --git a/src/include/test/switch_fct.h b/src/include/test/switch_fct.h
index a9b3595d0e..f88821b49c 100644
--- a/src/include/test/switch_fct.h
+++ b/src/include/test/switch_fct.h
@@ -1716,6 +1716,12 @@ fct_clp__parse(fct_clp_t *clp, int argc, char const *argv[])
             arg =NULL;
         }
     }
+
+    if (arg != NULL)
+    {
+        free(arg);
+        arg = NULL;
+    }
 }