diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h
index db8329091bb8..a3ae0710346c 100644
--- a/kernel/printk/internal.h
+++ b/kernel/printk/internal.h
@@ -178,7 +178,7 @@ static inline void nbcon_seq_force(struct console *con, u64 seq) { }
 static inline bool nbcon_alloc(struct console *con) { return false; }
 static inline void nbcon_init(struct console *con) { }
 static inline void nbcon_free(struct console *con) { }
-enum nbcon_prio nbcon_get_default_prio(void) { return NBCON_PRIO_NONE; }
+static inline enum nbcon_prio nbcon_get_default_prio(void) { return NBCON_PRIO_NONE; }
 static inline void nbcon_atomic_flush_all(void) { }
 static bool nbcon_atomic_emit_next_record(struct console *con) { return false; }