diff --git a/tools/build/test-includes/badfiles.inc b/tools/build/test-includes/badfiles.inc
index ce70cca62959..8303988dc838 100644
--- a/tools/build/test-includes/badfiles.inc
+++ b/tools/build/test-includes/badfiles.inc
@@ -157,6 +157,7 @@ BADHDRS= \
 	net/if_llc.h \
 	net/if_media.h \
 	net/if_mib.h \
+	net/if_pfsync.h \
 	net/if_tap.h \
 	net/if_tun.h \
 	net/if_var.h \