diff --git a/modem/libsamsung-ipc/0003-Use-std-gnu99-for-tools.patch b/modem/libsamsung-ipc/0003-Use-std-gnu99-for-tools.patch
new file mode 100644
index 000000000..03678d315
--- /dev/null
+++ b/modem/libsamsung-ipc/0003-Use-std-gnu99-for-tools.patch
@@ -0,0 +1,25 @@
+From ddfec5f4d8432b10daa57572585dcfe8c6e346df Mon Sep 17 00:00:00 2001
+From: Jens Reidel <adrian@travitia.xyz>
+Date: Thu, 2 Oct 2025 00:17:10 +0200
+Subject: [PATCH] Use -std=gnu99 for tools
+
+Signed-off-by: Jens Reidel <adrian@travitia.xyz>
+---
+ tools/Makefile.am | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/tools/Makefile.am b/tools/Makefile.am
+index 41e5441..a411307 100644
+--- a/tools/Makefile.am
++++ b/tools/Makefile.am
+@@ -2,6 +2,7 @@ NULL =
+ 
+ AM_CFLAGS = \
+ 	-I$(top_srcdir)/include \
++	-std=gnu99 \
+ 	$(NULL)
+ 
+ bin_PROGRAMS = \
+-- 
+2.51.0
+
diff --git a/modem/libsamsung-ipc/APKBUILD b/modem/libsamsung-ipc/APKBUILD
index e47512080..2a919a646 100644
--- a/modem/libsamsung-ipc/APKBUILD
+++ b/modem/libsamsung-ipc/APKBUILD
@@ -1,6 +1,6 @@
 pkgname=libsamsung-ipc
 pkgver=6.0.0004
-pkgrel=0
+pkgrel=1
 pkgdesc="Implementation of Samsung modem protocol"
 url="https://redmine.replicant.us/projects/replicant/wiki/Libsamsung-ipc"
 arch="all"
@@ -12,6 +12,7 @@ _pkgver="$(echo "$pkgver" | sed 's/\([0-9]*\.[0-9]*\)\.*/\1-/')"
 source="$pkgname-$_pkgver.tar.gz::https://git.replicant.us/replicant/hardware_replicant_libsamsung-ipc/snapshot/replicant-$_pkgver.tar.gz
 	0001-i9100-modem-firmware-device-path.patch
 	0002-runtime-device-overrides.patch
+	0003-Use-std-gnu99-for-tools.patch
 	"
 options="!check" # No tests
 
@@ -30,4 +31,5 @@ sha512sums="
 37725ffac1e44396e29da12dcb47313bfacddd6df89cb514a34412def788e1716a961ddb8e9b0923d722f7e6c4455a534156099f0dd6d2d0c414a5d57415585c  libsamsung-ipc-6.0-0004.tar.gz
 8751a815c8749e1c098b0231e064fcc475703f0d22125acdd0156bbe9d8cf8859158c5a5ca79f305292ed312694070f62b5c54d70ca4a4a713b5405f173ee1cf  0001-i9100-modem-firmware-device-path.patch
 4309b407d8ac5773a2e37573618a548116adeb5aa40233d52f2afc9f5f24f61684e72c72be6476f245f70e58d163211e4d31931bb95dc4f4cfcafa4dba693d8b  0002-runtime-device-overrides.patch
+61ecc4ae8c8482fbe53d5b7fca391a726c10758f906491b265ad18b458a82503afd6760e020ed0da480fa9166105e89ad1c3a56c1c456923d0032e90ea7ea5a4  0003-Use-std-gnu99-for-tools.patch
 "