diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 914d3398267..7999b759e77 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -1670,6 +1670,9 @@ PHP_FUNCTION(getopt)
 	/* Disable getopt()'s error messages. */
 	opterr = 0;
 
+	/* Force reinitialization of getopt() (via optind reset) on every call. */
+	optind = 0;
+
 	/* Invoke getopt(3) on the argument array. */
 #ifdef HARTMUT_0
 	while ((o = getopt_long(argc, argv, options, longopts, &longindex)) != -1) {