diff --git a/assets/mods/basegame/books/btex.xml b/assets/mods/basegame/books/btex.xml
index 1e3a91087..156450023 100644
--- a/assets/mods/basegame/books/btex.xml
+++ b/assets/mods/basegame/books/btex.xml
@@ -234,6 +234,7 @@
         <li><index id="thechapter (macro)"/><code>thechapter</code> — Chapter heading. Default: <code>%1$s</code></li>
         <li><index id="chaptertype (macro)"/><code>chaptertype</code> — Default style of the <code>chapter</code> tag. Default: <code>1</code></li>
         <li><index id="chapteronnewpage (macro)"/><code>chapteronnewpage</code> — Controls if a chapter must start on a new page. Put non-zero value to enable this behaviour. Default: <code>0</code></li>
+        <li><index id="resetchapterafterpart (macro)"/><code>resetchapterafterpart</code> — Controls if the chapter number should reset after a part. Put non-zero value to enable this behaviour. Default: <code>0</code></li>
         <li><index id="parindent (macro)"/><code>parindent</code> — Controls the indentation size of the paragraphs. Default: <code>16</code></li>
     </ul>
 
diff --git a/assets/mods/basegame/books/btex_ko.xml b/assets/mods/basegame/books/btex_ko.xml
index cbbd96695..5e483ed45 100644
--- a/assets/mods/basegame/books/btex_ko.xml
+++ b/assets/mods/basegame/books/btex_ko.xml
@@ -217,6 +217,7 @@
             <li><index id="thechapter (매크로)"/><code>thechapter</code> — 장 제목 번호. 기본값: <code>%1$s</code></li>
             <li><index id="chaptertype (매크로)"/><code>chaptertype</code> — <code>chapter</code> 태그의 기본 스타일. 기본값: <code>1</code></li>
             <li><index id="chapteronnewpage (매크로)"/><code>chapteronnewpage</code> — 새 페이지에서 장이 시작되게 하기. 활성화하려면 0이 아닌 임의의 값을 넣을 것. 기본값: <code>0</code></li>
+            <li><index id="resetchapterafterpart (매크로)"/><code>resetchapterafterpart</code> — 부(part) 뒤에 오는 장번호가 1에서 시작되게 하기. 활성화하려면 0이 아닌 임의의 값을 넣을 것. 기본값: <code>0</code></li>
             <li><index id="parindent (매크로)"/><code>parindent</code> — 문단의 들여쓰기 크기를 조절함. 기본값: <code>16</code></li>
         </ul>
 
diff --git a/src/net/torvald/btex/BTeXParser.kt b/src/net/torvald/btex/BTeXParser.kt
index dae60cf4d..97fc64e30 100644
--- a/src/net/torvald/btex/BTeXParser.kt
+++ b/src/net/torvald/btex/BTeXParser.kt
@@ -133,6 +133,7 @@ object BTeXParser {
             "thechapter" to "%1\$s",
             "chaptertype" to "1",
             "chapteronnewpage" to "0",
+            "resetchapterafterpart" to "0",
             "parindent" to "16"
         )
 
@@ -1325,7 +1326,21 @@ object BTeXParser {
         @CloseTag // reflective access is impossible with 'private'
         fun closeElemCHAPTER(handler: BTeXHandler, doc: BTeXDocument, uri: String, siblingIndex: Int) {
             val partOrder = cptSectMap.count { it.type.startsWith("part") }
-            val cptOrder = cptSectMap.count { it.type.startsWith("chapter") } + 1
+            val cptOrder = if (macrodefs["resetchapterafterpart"] != "0") {
+                var cnt = cptSectMap.size - 1
+                var sectOrder = 0
+                while (cnt >= 0) {
+                    if (cptSectMap[cnt].type.startsWith("chapter")) {
+                        sectOrder += 1
+                    }
+                    else break
+
+                    cnt -= 1
+                }
+                sectOrder + 1
+            }
+            else
+                cptSectMap.count { it.type.startsWith("chapter") } + 1
 
             val thePar = paragraphBuffer.toString().trim()
 
@@ -1364,7 +1379,22 @@ object BTeXParser {
             if (doc.linesPrintedOnPage.last() >= doc.pageLines - 1) doc.addNewPage(progressIndicator)
 
             val partOrder = cptSectMap.count { it.type.startsWith("part") }
-            val cptOrder = cptSectMap.count { it.type.startsWith("chapter") }
+            val cptOrder = if (macrodefs["resetchapterafterpart"] != "0") {
+                var cnt = cptSectMap.size - 1
+                var sectOrder = 0
+                while (cnt >= 0) {
+                    if (cptSectMap[cnt].type.startsWith("chapter")) {
+                        sectOrder += 1
+                    }
+                    else break
+
+                    cnt -= 1
+                }
+                sectOrder + 1
+            }
+            else
+                cptSectMap.count { it.type.startsWith("chapter") } + 1
+
             var sectOrder = 1
 
             var cnt = cptSectMap.size - 1