diff --git a/programs/other/period/period.asm b/programs/other/period/period.asm
index d8773c914..64969b0b9 100644
--- a/programs/other/period/period.asm
+++ b/programs/other/period/period.asm
@@ -4,8 +4,8 @@
 ; Text encoded as Code Page 866 - Cyrillic
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;  Periodic Table of Chemical Elements for KolibriOS
-;;              Dmitry Ivanovich Mendeleyev
+;;  Dmitry Ivanovich Mendeleyev's
+;;      Periodic Table of Chemical Elements for KolibriOS
 ;;  Authors:
 ;;      navanax [violetlab+rambler.ru]
 ;;      Johnny_B [john+kolibrios.org]
@@ -104,7 +104,7 @@ draw_window:
 
 text_in_window:
         mov  eax,4           ;text output
-        mov  ecx,0x80000000  ; asciz, color !!!
+        mov  ecx,0x80000000  ; asciiz, color !!!
 
         mov  ebx,40*65536+200         ;lanthanide
         mov  edx,Lantanoid_text
@@ -624,7 +624,7 @@ draw_text:
         add ebx,15
         mcall
 
-        mov  ecx,0x80000000  ; asciz, color !!!
+        mov  ecx,0x80000000  ; asciiz, color !!!
         ; 5 output density [optmzd-mem]
         mov edi,Plotnost
         call out_asciiz_item
@@ -644,7 +644,7 @@ draw_text:
         add ebx,15
         mcall
 
-        mov  ecx,0x80000000  ;asciz, color !!!
+        mov  ecx,0x80000000  ;asciiz, color !!!
         ; 8 output melting point [optmzd-mem]
         mov edi,T_plavl
         call out_asciiz_item