diff --git a/ext/iconv/tests/gh7980.phpt b/ext/iconv/tests/gh7980.phpt
index 11be9e129e02..b748c9f7cc63 100644
--- a/ext/iconv/tests/gh7980.phpt
+++ b/ext/iconv/tests/gh7980.phpt
@@ -2,6 +2,12 @@
 Bug GH-7980 (Unexpected result for iconv_mime_decode)
 --EXTENSIONS--
 iconv
+--SKIPIF--
+<?php
+if (@iconv("windows-1258", "UTF-8", "") === false) {
+    die("skip windows-1258 is not supported by this iconv implementation");
+}
+?>
 --FILE--
 <?php
 $subject = '=?windows-1258?Q?DSI_Charg=E9_de_Formation_Jean_Dupont?= <jdupont@example.fr>';