diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 3919ddf26d15e192d837eae9eb9e5fb291da816c..6d1631df3e9cd13b146063a5f42a27e0017b7e10 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1614,7 +1614,7 @@ static int dso__disassemble_filename(struct dso *dso, char *filename, size_t fil
 
 	build_id_path = strdup(filename);
 	if (!build_id_path)
-		return -1;
+		return ENOMEM;
 
 	/*
 	 * old style build-id cache has name of XX/XXXXXXX.. while
@@ -2732,7 +2732,7 @@ int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *ev
 
 	notes->offsets = zalloc(size * sizeof(struct annotation_line *));
 	if (notes->offsets == NULL)
-		return -1;
+		return ENOMEM;
 
 	if (perf_evsel__is_group_event(evsel))
 		nr_pcnt = evsel->nr_members;