diff --git a/Makefile.am b/Makefile.am
index 7fc6a579..435bc872 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -415,6 +415,7 @@ unit_test_wsc_LDADD = $(ell_ldadd)
 
 unit_test_eap_mschapv2_SOURCES = src/eap-mschapv2.h src/eap-mschapv2.c \
 				src/eap.c src/eap.h src/eap-private.h \
+				src/mschaputil.h src/mschaputil.c \
 				unit/test-eap-mschapv2.c
 unit_test_eap_mschapv2_LDADD = $(ell_ldadd)
 
diff --git a/unit/test-eap-mschapv2.c b/unit/test-eap-mschapv2.c
index a33b39f5..3d512ac1 100644
--- a/unit/test-eap-mschapv2.c
+++ b/unit/test-eap-mschapv2.c
@@ -30,6 +30,7 @@
 #include <ell/ell.h>
 
 #include "src/eap-mschapv2.h"
+#include "src/mschaputil.h"
 
 /* The test values here are taken from the RFCs the functions are defined in */