diff --git a/libc/include/netinet/icmp6.h b/libc/include/netinet/icmp6.h
index 0ecc2e59d..6625712af 100644
--- a/libc/include/netinet/icmp6.h
+++ b/libc/include/netinet/icmp6.h
@@ -390,11 +390,15 @@ struct icmp6_nodeinfo {
 	/* could be followed by reply data */
 } __packed;
 
+/*
+ * BEGIN android-removed: glibc doesn't have these, and external/ping declares them itself.
 #define ni_type		icmp6_ni_hdr.icmp6_type
 #define ni_code		icmp6_ni_hdr.icmp6_code
 #define ni_cksum	icmp6_ni_hdr.icmp6_cksum
 #define ni_qtype	icmp6_ni_hdr.icmp6_data16[0]
 #define ni_flags	icmp6_ni_hdr.icmp6_data16[1]
+ * END android-removed
+ */
 
 #define NI_QTYPE_NOOP		0 /* NOOP  */
 #define NI_QTYPE_SUPTYPES	1 /* Supported Qtypes */