diff --git a/ext/phar/phar.c b/ext/phar/phar.c
index e201d59de1f..9b55bfc5ff8 100644
--- a/ext/phar/phar.c
+++ b/ext/phar/phar.c
@@ -2092,7 +2092,7 @@ int phar_flush(phar_archive_data *phar, char *user_stub, long len, int convert,
 		return EOF;
 	}
 
-	if (!zend_hash_num_elements(&phar->manifest)) {
+	if (!zend_hash_num_elements(&phar->manifest) && !user_stub) {
 		return EOF;
 	}
 
diff --git a/ext/phar/tests/tar/phar_convert_phar.phpt b/ext/phar/tests/tar/phar_convert_phar.phpt
index 3f982a9a1ed..216c353dd43 100644
--- a/ext/phar/tests/tar/phar_convert_phar.phpt
+++ b/ext/phar/tests/tar/phar_convert_phar.phpt
@@ -13,6 +13,7 @@ $fname2 = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '2.phar';
 $fname3 = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '.3.phar';
 
 $phar = new Phar($fname);
+$phar['a.txt'] = 'some text';
 $phar->stopBuffering();
 var_dump($phar->isTar());
 var_dump(strlen($phar->getStub()));
diff --git a/ext/phar/tests/tar/phar_convert_phar2.phpt b/ext/phar/tests/tar/phar_convert_phar2.phpt
index b0e360af9be..e79c0fe91f0 100644
--- a/ext/phar/tests/tar/phar_convert_phar2.phpt
+++ b/ext/phar/tests/tar/phar_convert_phar2.phpt
@@ -13,6 +13,7 @@ $fname = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '.phar';
 $fname2 = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '2.phar';
 
 $phar = new Phar($fname);
+$phar['a.txt'] = 'some text';
 $phar->stopBuffering();
 var_dump($phar->isTar());
 var_dump(strlen($phar->getStub()));
diff --git a/ext/phar/tests/tar/phar_convert_phar3.phpt b/ext/phar/tests/tar/phar_convert_phar3.phpt
index de2ccbe10f3..e4155deb3b4 100644
--- a/ext/phar/tests/tar/phar_convert_phar3.phpt
+++ b/ext/phar/tests/tar/phar_convert_phar3.phpt
@@ -13,6 +13,7 @@ $fname = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '.phar';
 $fname2 = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '2.phar';
 
 $phar = new Phar($fname);
+$phar['a.txt'] = 'some text';
 $phar->stopBuffering();
 var_dump($phar->isTar());
 var_dump(strlen($phar->getStub()));
diff --git a/ext/phar/tests/zip/phar_convert_phar.phpt b/ext/phar/tests/zip/phar_convert_phar.phpt
index aa29cbb82d5..dcc0dd1f097 100644
--- a/ext/phar/tests/zip/phar_convert_phar.phpt
+++ b/ext/phar/tests/zip/phar_convert_phar.phpt
@@ -13,6 +13,7 @@ $fname2 = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '2.phar';
 $fname3 = dirname(__FILE__) . '/' . basename(__FILE__, '.php') . '.3.phar';
 
 $phar = new Phar($fname);
+$phar['a.txt'] = 'some text';
 $phar->stopBuffering();
 var_dump($phar->isZip());
 var_dump(strlen($phar->getStub()));