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-rw-r--r--nuttx/drivers/net/slip.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nuttx/drivers/net/slip.c b/nuttx/drivers/net/slip.c
index 899e4e5be..c822b5d46 100644
--- a/nuttx/drivers/net/slip.c
+++ b/nuttx/drivers/net/slip.c
@@ -73,7 +73,7 @@
# error "UIP_LLH_LEN must be set to zero"
#endif
-#ifdef CONFIG_NET_MULTIBUFFER
+#ifndef CONFIG_NET_MULTIBUFFER
# error "Requires CONFIG_NET_MULTIBUFFER"
#endif