diff --git a/ext/pgsql/pgsql.c b/ext/pgsql/pgsql.c
index e5054bd087a61..58b8c698072cd 100644
--- a/ext/pgsql/pgsql.c
+++ b/ext/pgsql/pgsql.c
@@ -6267,7 +6267,7 @@ PHP_PGSQL_API int php_pgsql_convert(PGconn *pg_link, const char *table_name, con
 							ZVAL_STRINGL(&new_val, "NULL", sizeof("NULL")-1);
 						}
 						else {
-#define REGEX0 "^(([0-9]{1,2}:[0-9]{1,2}){1}(:[0-9]{1,2}){0,1})){0,1}$"
+#define REGEX0 "^(([0-9]{1,2}:[0-9]{1,2}){1}(:[0-9]{1,2}){0,1}){0,1}$"
 							/* FIXME: better regex must be used */
 							if (php_pgsql_convert_match(Z_STRVAL_P(val), Z_STRLEN_P(val), REGEX0, sizeof(REGEX0)-1, 1) == FAILURE) {
 								err = 1;