diff --git a/test/dm/mux-emul.c b/test/dm/mux-emul.c
index 45154ce..58233ed 100644
--- a/test/dm/mux-emul.c
+++ b/test/dm/mux-emul.c
@@ -9,6 +9,7 @@
 #include <mux-internal.h>
 #include <dm/test.h>
 #include <test/ut.h>
+#include <asm/global_data.h>
 
 struct mux_emul_priv {
 	u32 state;