diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index a3edb2c8e43d..47e1d995c182 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -13,6 +13,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <stdarg.h>
+#include <stdio.h>
 
 /* define kselftest exit codes */
 #define KSFT_PASS  0