1 files changed, 2 insertions, 1 deletions
diff --git a/dev.c b/dev.c
index 45659a8..aa0ca4e 100644
--- a/dev.c
+++ b/dev.c
@@ -39,7 +39,8 @@ int device_ifindex_get(const char *ifname)
 int device_ifindex(const char *ifname)
 {
 	int index = device_ifindex_get(ifname);
-	if (unlikely(index <= 0))
+
+	if (unlikely(index < 0))
 		panic("Cannot get ifindex from device!\n");
 
 	return index;