diff --git a/Makefile.am b/Makefile.am
index 7e8b7d39..740ccdc2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -93,6 +93,7 @@ src_iwd_SOURCES = src/main.c linux/nl80211.h \
 					src/iwd.h src/eap-sim.c src/eap-aka.c \
 					src/simutil.h src/simutil.c \
 					src/ap.h src/ap.c \
+					src/simauth.h src/simauth.c \
 					src/plugin.h src/plugin.c \
 					$(builtin_sources)