diff --git a/sdk/bpf/c/inc/stdio.h b/sdk/bpf/c/inc/stdio.h
index d42f16101f..cd3fda2707 100644
--- a/sdk/bpf/c/inc/stdio.h
+++ b/sdk/bpf/c/inc/stdio.h
@@ -1,2 +1,4 @@
 #pragma once
 typedef void *FILE;
+
+int printf(const char * restrictformat, ... );