diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index aacb814..14cb846 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -70,11 +70,10 @@
 	}
 }
 
-int perf_header__read_build_ids(int input, off_t size)
+int perf_header__read_build_ids(int input, off_t offset, off_t size)
 {
 	struct build_id_event bev;
 	char filename[PATH_MAX];
-	off_t offset = lseek(input, 0, SEEK_CUR);
 	off_t limit = offset + size;
 	int err = -1;
 
diff --git a/tools/perf/util/data_map.h b/tools/perf/util/data_map.h
index 20b4037..ae036ec 100644
--- a/tools/perf/util/data_map.h
+++ b/tools/perf/util/data_map.h
@@ -27,6 +27,6 @@
 			    int full_paths,
 			    int *cwdlen,
 			    char **cwd);
-int perf_header__read_build_ids(int input, off_t file_size);
+int perf_header__read_build_ids(int input, off_t offset, off_t file_size);
 
 #endif
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index ebed4f4..ca0d657 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -359,7 +359,7 @@
 
 		buildid_sec = &feat_sec[idx++];
 		lseek(fd, buildid_sec->offset, SEEK_SET);
-		if (perf_header__read_build_ids(fd, buildid_sec->size))
+		if (perf_header__read_build_ids(fd, buildid_sec->offset, buildid_sec->size))
 			pr_debug("failed to read buildids, continuing...\n");
 	}