diff --git a/src/chapter-30.md b/src/chapter-30.md
index e06b49e..4ee51fc 100644
--- a/src/chapter-30.md
+++ b/src/chapter-30.md
@@ -751,7 +751,7 @@ MyStack       segment para stack 'STACK'
        db     512 dup (0)
 MyStack       ends
 ;*********************************************************************
-Datasegment
+Data segment
 SplitScreenLine       dw    ?            ;line the split screen currently
                                          ; starts after
 StartAddress          dw    ?            ;display memory offset at which