diff --git a/lib/review/plaintextbuilder.rb b/lib/review/plaintextbuilder.rb
index d041a48ea..78eebdf95 100644
--- a/lib/review/plaintextbuilder.rb
+++ b/lib/review/plaintextbuilder.rb
@@ -48,6 +48,7 @@ def builder_init_file
       @subsubsection = 0
       @subsubsubsection = 0
       @blank_seen = true
+      @first_line_num = nil
     end
     private :builder_init_file
 
@@ -213,12 +214,13 @@ def emlist(lines, caption = nil, _lang = nil)
     end
 
     def emlistnum(lines, caption = nil, _lang = nil)
+      first_line_number = line_num
       blank
       if caption_top?('list') && caption.present?
         puts compile_inline(caption)
       end
       lines.each_with_index do |line, i|
-        puts((i + 1).to_s.rjust(2) + ": #{line}")
+        puts((i + first_line_number).to_s.rjust(2) + ": #{line}")
       end
       if !caption_top?('list') && caption.present?
         puts compile_inline(caption)
@@ -245,8 +247,9 @@ def listnum(lines, id, caption, lang = nil)
     end
 
     def listnum_body(lines, _lang)
+      first_line_number = line_num
       lines.each_with_index do |line, i|
-        puts((i + 1).to_s.rjust(2) + ": #{line}")
+        puts((i + first_line_number).to_s.rjust(2) + ": #{line}")
       end
     end
 
diff --git a/lib/review/topbuilder.rb b/lib/review/topbuilder.rb
index ee1040ef9..f7085ff4a 100644
--- a/lib/review/topbuilder.rb
+++ b/lib/review/topbuilder.rb
@@ -56,6 +56,7 @@ def builder_init_file
         'bpo' => 'bpo',
         'source' => 'ソースコードリスト'
       }
+      @first_line_num = nil
     end
     private :builder_init_file
 
@@ -149,13 +150,14 @@ def base_parablock(type, lines, caption = nil)
     end
 
     def emlistnum(lines, caption = nil, _lang = nil)
+      first_line_number = line_num
       blank
       puts "◆→開始:#{@titles['emlist']}←◆"
       if caption_top?('list') && caption.present?
         puts "■#{compile_inline(caption)}"
       end
       lines.each_with_index do |line, i|
-        puts((i + 1).to_s.rjust(2) + ": #{line}")
+        puts((i + first_line_number).to_s.rjust(2) + ": #{line}")
       end
       if !caption_top?('list') && caption.present?
         puts "■#{compile_inline(caption)}"
@@ -185,8 +187,9 @@ def listnum(lines, id, caption, lang = nil)
     end
 
     def listnum_body(lines, _lang)
+      first_line_number = line_num
       lines.each_with_index do |line, i|
-        puts((i + 1).to_s.rjust(2) + ": #{line}")
+        puts((i + first_line_number).to_s.rjust(2) + ": #{line}")
       end
     end
 
diff --git a/test/assets/syntax_book_index_detail.txt b/test/assets/syntax_book_index_detail.txt
index 000aa099a..42c823508 100644
--- a/test/assets/syntax_book_index_detail.txt
+++ b/test/assets/syntax_book_index_detail.txt
@@ -26,11 +26,11 @@
 -----------------------------
    169C     2L   0.2P  第II部　部見出し■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□
 =============================
-  6110C   188L    11P  ch02
+  6111C   188L    11P  ch02
 -----------------------------
     52C     1L   0.0P  第2章　長い章見出し■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□■□
     10C     1L   0.0P    2.1　ブロック命令
-   784C    27L   1.4P      2.1.1　ソースコード
+   785C    27L   1.4P      2.1.1　ソースコード
    338C     8L   0.5P      2.1.2　図
    709C    22L   1.3P      2.1.3　表
   1154C    56L   2.8P      2.1.4　囲み記事