diff --git a/examples/slcd/slcd_main.c b/examples/slcd/slcd_main.c
index 1259d0642..0a0a5e0f2 100644
--- a/examples/slcd/slcd_main.c
+++ b/examples/slcd/slcd_main.c
@@ -47,6 +47,7 @@
 #include <fcntl.h>
 #include <errno.h>
 
+#include <nuttx/lcd/slcd_ioctl.h>
 #include <nuttx/lcd/slcd_codec.h>
 
 /****************************************************************************