diff --git a/elilo-c99.patch b/elilo-c99.patch
new file mode 100644
index 0000000..85e0bfa
--- /dev/null
+++ b/elilo-c99.patch
@@ -0,0 +1,13 @@
+Index: elilo-3.16-source/fs/netfs.c
+===================================================================
+--- elilo-3.16-source.orig/fs/netfs.c
++++ elilo-3.16-source/fs/netfs.c
+@@ -55,7 +55,7 @@ typedef struct _netfs_fd {
+ 	
+ 	CHAR8  *netbuf;
+ 	UINT64 netbuf_maxsize;	/* currently allocated buffer */
+-	UINTN  netbuf_size;	/* number of bytes currently used in the buffer */
++	UINT64 netbuf_size;	/* number of bytes currently used in the buffer */
+ 	UINT64 netbuf_pos;	/* current position in the buffer */
+ 	BOOLEAN is_valid;	/* avoid conflicting opens */
+ 	BOOLEAN netbuf_reuse;
diff --git a/elilo.changes b/elilo.changes
index 0b3e087..b753e4a 100644
--- a/elilo.changes
+++ b/elilo.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jul 25 15:55:33 UTC 2024 - Filip Kastl <filip.kastl@suse.com>
+
+- Add elilo-c99.patch so that the package conforms to the C99
+  standard and builds on i586 with GCC 14.
+
 -------------------------------------------------------------------
 Thu Feb 22 11:34:21 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
 
diff --git a/elilo.spec b/elilo.spec
index fa4324a..d8770d8 100644
--- a/elilo.spec
+++ b/elilo.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package elilo
 #
-# Copyright (c) 2021 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -33,7 +33,9 @@ Group:          System/Boot
 Version:        3.16
 Release:        0
 ExclusiveArch:  ia64 %ix86 x86_64
-PreReq:         /usr/bin/perl perl(Pod::Usage) perl(Getopt::Long)
+PreReq:         /usr/bin/perl
+PreReq:         perl(Getopt::Long)
+PreReq:         perl(Pod::Usage)
 # "perl" must be in place *before* any package's 'pre' or 'post' section
 # can (directly or indirectly) run '/sbin/elilo'!  (bnc#842183)
 %ifarch ia64
@@ -58,6 +60,7 @@ Patch7:         elilo-high_base_mem.diff
 Patch10:        elilo-de-debianify.diff
 Patch11:        eliloalt-no-date.diff
 Patch12:        elilo-binutils-2.36-fix.patch
+Patch13:        elilo-c99.patch
 
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build