diff --git a/src/source-netmap.c b/src/source-netmap.c
index 2409e3847..35533263b 100644
--- a/src/source-netmap.c
+++ b/src/source-netmap.c
@@ -692,6 +692,9 @@ static TmEcode NetmapWritePacket(NetmapThreadVars *ntv, Packet *p)
 #else
     if (nm_inject(ntv->ifdst->nmd, GET_PKT_DATA(p), GET_PKT_LEN(p)) == 0) {
 #endif
+        /* writing the packet failed, but still need kernel to sync TX rings */
+        ioctl(ntv->ifdst->nmd->fd, NIOCTXSYNC, 0);
+
         if (ntv->flags & NETMAP_FLAG_EXCL_RING_ACCESS) {
             SCMutexUnlock(&ntv->ifdst->netmap_dev_lock);
         }