diff --git a/src/common/engine/printf.h b/src/common/engine/printf.h
index 3c6164f76..69d3e7d45 100644
--- a/src/common/engine/printf.h
+++ b/src/common/engine/printf.h
@@ -1,4 +1,5 @@
 #pragma once
+#include <stdarg.h>
 
 #if defined __GNUC__ || defined __clang__
 # define ATTRIBUTE(attrlist) __attribute__(attrlist)