diff --git a/util/ego/il/il.c b/util/ego/il/il.c
index 124e00b22..0a5ab629b 100644
--- a/util/ego/il/il.c
+++ b/util/ego/il/il.c
@@ -10,6 +10,7 @@
 #include "../../../h/em_mnem.h"
 #include "../../../h/em_pseu.h"
 #include "../share/map.h"
+#include "il_aux.h"
 #include "il1_anal.h"
 #include "il2_aux.h"
 #include "il3_subst.h"
diff --git a/util/ego/il/il3_subst.c b/util/ego/il/il3_subst.c
index 29efd2008..a3601a36e 100644
--- a/util/ego/il/il3_subst.c
+++ b/util/ego/il/il3_subst.c
@@ -12,6 +12,7 @@
 #include "../share/lset.h"
 #include "../share/get.h"
 #include "../../../h/em_mnem.h"
+#include "il_aux.h"
 #include "il3_aux.h"
 #include "il3_change.h"
 #include "il3_subst.h"