diff --git a/src/journal.c b/src/journal.c
index 45cfa48..b42544a 100644
--- a/src/journal.c
+++ b/src/journal.c
@@ -61,7 +61,9 @@ SDB_API int sdb_journal_load(Sdb *s) {
 	if (sz < 1) {
 		return 0;
 	}
-	lseek (fd, 0, SEEK_SET);
+	if (lseek (fd, 0, SEEK_SET) == (off_t) -1) {
+		return 0;
+	}
 	str = (char *)sdb_gh_malloc (sz + 1);
 	if (!str) {
 		return 0;
diff --git a/src/query.c b/src/query.c
index f3c5e24..51f4625 100644
--- a/src/query.c
+++ b/src/query.c
@@ -891,7 +891,10 @@ static char *slurp(const char *file) {
 		close (fd);
 		return NULL;
 	}
-	lseek (fd, 0, SEEK_SET);
+	if (lseek (fd, 0, SEEK_SET) == (off_t)-1) {
+		close (fd);
+		return NULL;
+	}
 	char *text = (char *)sdb_gh_malloc (sz + 1);
 	if (!text) {
 		close (fd);