Option "file" requires an argument

The following two command lines should be equivalent:

gst -f tests/lists1.st 5
gst --file tests/lists1.st 5

While the former works, the later throws this error:

gst: Aborted
gst: Error occurred while not in byte code interpreter!!
/usr/local/bin/../lib64/libgst.so.7(+0x736f7)[0x7f19b8a0b6f7]
/lib64/libc.so.6(+0x3d530)[0x7f19b8574530]
/lib64/libc.so.6(gsignal+0x145)[0x7f19b85744a5]
/lib64/libc.so.6(abort+0x116)[0x7f19b855d864]
/usr/local/bin/../lib64/libgst.so.7(+0x11c58)[0x7f19b89a9c58]
/usr/lib64/libsigsegv.so.2(+0x20bc)[0x7f19b89940bc]
/lib64/libc.so.6(+0x3d530)[0x7f19b8574530]
gst(main+0x100)[0x4022a0]
/lib64/libc.so.6(__libc_start_main+0xd5)[0x7f19b855eb25]
gst(_start+0x2e)[0x4024de]


--8<-----------------------------cut here---------------start------------->8---
commit 589b4354c34dd2bb2f57960a13910a12176119cf
Author: Tino Calancha <[email protected]>
Date:   Thu Mar 25 15:46:18 2021 +0100

     * main.c (long_options): Option "file" requires an argument

diff --git a/main.c b/main.c
index f28aad3e..a4a9128b 100644
--- a/main.c
+++ b/main.c
@@ -132,7 +132,7 @@ static const struct option long_options[] = {
    {"core-dump", 0, 0, 'c'},
    {"declaration-trace", 0, 0, 'D'},
    {"execution-trace", 0, 0, 'E'},
-  {"file", 0, 0, 'f'},
+  {"file", 1, 0, 'f'},
    {"kernel-directory", 1, 0, OPT_KERNEL_DIR},
    {"no-user-files", 0, 0, OPT_NO_USER},
    {"no-gc-message", 0, 0, 'g'},
--8<-----------------------------cut here---------------end--------------->8---

On top of commit: dfe4b5660037c4d178853ee00458a75e51a88563