diff --git a/include/osmocom/gsm/tlv.h b/include/osmocom/gsm/tlv.h
index d54ef1a..c19034f 100644
--- a/include/osmocom/gsm/tlv.h
+++ b/include/osmocom/gsm/tlv.h
@@ -402,7 +402,7 @@
                   const uint8_t *buf, int buf_len);
 int tlv_parse(struct tlv_parsed *dec, const struct tlv_definition *def,
 	      const uint8_t *buf, int buf_len, uint8_t lv_tag, uint8_t lv_tag2);
-/* take a master (src) tlvdev and fill up all empty slots in 'dst' */
+/* take a master (src) tlv def and fill up all empty slots in 'dst' */
 void tlv_def_patch(struct tlv_definition *dst, const struct tlv_definition *src);
 
 #define TLVP_PRESENT(x, y)	((x)->lv[y].val)