diff --git a/core/libnl3/build b/core/libnl3/build
index a7ffe99d..e197881c 100755
--- a/core/libnl3/build
+++ b/core/libnl3/build
@@ -1,5 +1,6 @@
 #!/bin/sh -e
 
+# Fix issues on musl.
 patch -p0 < musl-ipv6.patch
 sed -i '/<linux\/if_bridge.h>/i#define _LINUX_IN6_H' lib/route/link/bridge.c