diff --git a/ctr/ctr_system.c b/ctr/ctr_system.c
index 29594251e7..9126ba009e 100644
--- a/ctr/ctr_system.c
+++ b/ctr/ctr_system.c
@@ -1,5 +1,6 @@
 #include <3ds.h>
 #include <sys/iosupport.h>
+#include <3ds/services/apt.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>