diff --git a/man/sd_journal_next.xml b/man/sd_journal_next.xml
index 1409b0dba..750282cfb 100644
--- a/man/sd_journal_next.xml
+++ b/man/sd_journal_next.xml
@@ -183,7 +183,7 @@ int main(int argc, char *argv[]) {
                 const char *d;
                 size_t l;
 
-                r = sd_journal_get_data(j, "MESSAGE", &d, &l);
+                r = sd_journal_get_data(j, "MESSAGE", (const void **)&d, &l);
                 if (r < 0) {
                         fprintf(stderr, "Failed to read message field: %s\n", strerror(-r));
                         continue;