diff --git a/src/drsnoop/drsnoop.c b/src/drsnoop/drsnoop.c
index fa9fbf3dcbcfe47fb7d95d3fa429a636ce6ffc53..ca26d41ef2b8a7ad6b73e299ef91fae67d0b7f7a 100644
--- a/src/drsnoop/drsnoop.c
+++ b/src/drsnoop/drsnoop.c
@@ -78,3 +78,16 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state)
 	}
 	return 0;
 }
+
+static int libbpf_print_fn(enum libbpf_print_level level, const char *format,
+			   va_list args)
+{
+	if (level == LIBBPF_DEBUG && !verbose)
+		return 0;
+	return vfprintf(stderr, format, args);
+}
+
+static void sig_handler(int sig)
+{
+	exiting = 1;
+}
\ No newline at end of file