diff --git a/ext/pcre/tests/bug76850.phpt b/ext/pcre/tests/bug76850.phpt
new file mode 100644
index 00000000000..ec06ccf8973
--- /dev/null
+++ b/ext/pcre/tests/bug76850.phpt
@@ -0,0 +1,21 @@
+--TEST--
+Bug #76850 Exit code mangled by set locale/preg_match
+--FILE--
+<?php
+
+function foo()
+{
+        $oldlocale = setlocale(LC_CTYPE, 0);
+        setlocale(LC_CTYPE, $oldlocale);
+}
+
+foo();
+
+var_dump(preg_match('/./', "a"));
+
+?>
+==DONE==
+--EXPECT--
+int(1)
+==DONE==
+