diff --git a/tests/progs/slapd-mtread.c b/tests/progs/slapd-mtread.c
index 587d3cf837..bf6014ad53 100644
--- a/tests/progs/slapd-mtread.c
+++ b/tests/progs/slapd-mtread.c
@@ -528,6 +528,7 @@ do_random( LDAP *ld,
 			if ( rc ) {
 				tester_ldap_error( ld, "ldap_search_ext_s", NULL );
 			}
+			ldap_msgfree( res );
 			break;
 		}
 
@@ -566,6 +567,7 @@ do_random( LDAP *ld,
 
 	default:
 		tester_ldap_error( ld, "ldap_search_ext_s", NULL );
+		ldap_msgfree( res );
 		break;
 	}