diff --git a/include/stdio.h b/include/stdio.h
index a136da9..205c33a 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -125,9 +125,9 @@ typedef size_t fpos_t;
 #define L_tmpnam FILENAME_MAX
 
 /* Seeking positions. */
-#define SEEK_CUR 0
-#define SEEK_END 1
-#define SEEK_SET 2
+#define SEEK_CUR 1
+#define SEEK_END 2
+#define SEEK_SET 3
 
 /* Maximum number of unique filenames that tmpnam can generate. */
 /* TODO: Set a useful value in TMP_MAX other than 16*16*16 */