diff --git a/ircd/Makefile.am b/ircd/Makefile.am
index 8c7d9b19e..ccf426e00 100644
--- a/ircd/Makefile.am
+++ b/ircd/Makefile.am
@@ -3,6 +3,7 @@ AUTOMAKE_OPTIONS = foreign
 libircddir	= @libdir@
 
 AM_CPPFLAGS = \
+	-ffriend-injection \
 	-I$(top_srcdir)/include \
 	@ROCKSDB_CPPFLAGS@ \
 	@JS_CPPFLAGS@ \