diff --git a/src/libbpf_internal.h b/src/libbpf_internal.h
index 7d71621..8c3afbd 100644
--- a/src/libbpf_internal.h
+++ b/src/libbpf_internal.h
@@ -76,7 +76,7 @@ static inline bool libbpf_validate_opts(const char *opts,
 
 		for (i = opts_sz; i < user_sz; i++) {
 			if (opts[i]) {
-				pr_warn("%s has non-zero extra bytes",
+				pr_warn("%s has non-zero extra bytes\n",
 					type_name);
 				return false;
 			}