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-rw-r--r--interface-ip.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/interface-ip.c b/interface-ip.c
index 15a91af..165d4a8 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -370,7 +370,7 @@ route_cmp(const void *k1, const void *k2, void *ptr)
static int
prefix_cmp(const void *k1, const void *k2, void *ptr)
{
- return memcmp(k1, k2, sizeof(struct device_prefix) -
+ return memcmp(k1, k2, offsetof(struct device_prefix, pclass) -
offsetof(struct device_prefix, addr));
}