diff --git a/utils/chvideomode.cpp b/utils/chvideomode.cpp
index dfb20e68..45bac1ba 100644
--- a/utils/chvideomode.cpp
+++ b/utils/chvideomode.cpp
@@ -1,3 +1,6 @@
+#define __STDC_CONSTANT_MACROS
+#define __STDC_LIMIT_MACROS
+
 #include <sys/keycodes.h>
 #include <sys/termmode.h>
 #include <sys/wait.h>