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-rw-r--r--src/libudev/libudev-device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libudev/libudev-device.c b/src/libudev/libudev-device.c
index 16ee1f4be3..825a0e10f4 100644
--- a/src/libudev/libudev-device.c
+++ b/src/libudev/libudev-device.c
@@ -139,7 +139,7 @@ static int udev_device_set_ifindex(struct udev_device *udev_device, int ifindex)
char num[32];
udev_device->ifindex = ifindex;
- snprintf(num, sizeof(num), "%u", ifindex);
+ snprintf(num, sizeof(num), "%d", ifindex);
udev_device_add_property(udev_device, "IFINDEX", num);
return 0;
}