diff --git a/src/common/kiwix/indexer.cpp b/src/common/kiwix/indexer.cpp
index d84951d7f..99cb2870a 100644
--- a/src/common/kiwix/indexer.cpp
+++ b/src/common/kiwix/indexer.cpp
@@ -48,6 +48,7 @@ namespace kiwix {
     pthread_mutex_init(&articleIndexerRunningMutex, NULL);
     pthread_mutex_init(&articleCountMutex, NULL);
     pthread_mutex_init(&zimPathMutex, NULL);
+    pthread_mutex_init(&zimIdMutex, NULL);
     pthread_mutex_init(&indexPathMutex, NULL);
     pthread_mutex_init(&progressionMutex, NULL);
     pthread_mutex_init(&verboseMutex, NULL);
@@ -70,10 +71,12 @@ namespace kiwix {
     pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL);
     kiwix::Indexer *self = (kiwix::Indexer *)ptr;
 
-    /* Get the number of article to index */
+    /* Get the number of article to index and the ZIM id */
     kiwix::Reader reader(self->getZimPath());
     unsigned int articleCount = reader.getGlobalCount();
     self->setArticleCount(articleCount);
+    string zimId = reader.getId();
+    self->setZimId(zimId);
 
     /* Progression */
     unsigned int readArticleCount = 0;
@@ -237,6 +240,11 @@ namespace kiwix {
       pthread_testcancel();
     }
     self->indexingPostlude();
+
+    /* Write content id file */
+    string path = appendToDirectory(self->getIndexPath(), "content.id");
+    writeTextFile(path, self->getZimId());
+
     self->setProgression(100);
 #ifdef _WIN32
     Sleep(100);
@@ -405,6 +413,19 @@ namespace kiwix {
     return retVal;
   }
 
+  void Indexer::setZimId(const string id) {
+    pthread_mutex_lock(&zimIdMutex);
+    this->zimId = id;
+    pthread_mutex_unlock(&zimIdMutex); 
+  }
+
+  string Indexer::getZimId() {
+    pthread_mutex_lock(&zimIdMutex); 
+    string retVal = this->zimId;
+    pthread_mutex_unlock(&zimIdMutex);
+    return retVal;
+  }
+
   /* Manage */
   bool Indexer::start(const string zimPath, const string indexPath) {
     if (this->getVerboseFlag()) {
diff --git a/src/common/kiwix/indexer.h b/src/common/kiwix/indexer.h
index f69d4933b..42476bb99 100644
--- a/src/common/kiwix/indexer.h
+++ b/src/common/kiwix/indexer.h
@@ -163,6 +163,12 @@ namespace kiwix {
     string indexPath;
     void setIndexPath(const string path);
     string getIndexPath();
+
+    /* ZIM id */
+    pthread_mutex_t zimIdMutex;
+    string zimId;
+    void setZimId(const string id);
+    string getZimId();
   };
 }
 
diff --git a/src/common/pathTools.cpp b/src/common/pathTools.cpp
index 672234e2b..e30c3895f 100644
--- a/src/common/pathTools.cpp
+++ b/src/common/pathTools.cpp
@@ -97,6 +97,17 @@ string removeLastPathElement(const string path, const bool removePreSeparator, c
   return newPath;
 }
 
+string appendToDirectory(const string &directoryPath, const string &filename) {
+#ifdef _WIN32
+  string separator = "\\";
+#else
+  string separator = "/";
+#endif
+
+  string newPath = directoryPath + separator + filename;
+  return newPath;
+}
+
 string getLastPathElement(const string &path) {
 #ifdef _WIN32
   string separator = "\\";
@@ -166,3 +177,11 @@ string getExecutablePath() {
 
   return std::string(binRootPath);
 }
+
+bool writeTextFile(const string &path, const string &content) {
+  std::ofstream file;
+  file.open(path);
+  file << content;
+  file.close();
+  return true;
+}
diff --git a/src/common/pathTools.h b/src/common/pathTools.h
index c829c0c73..3b5bc1942 100644
--- a/src/common/pathTools.h
+++ b/src/common/pathTools.h
@@ -42,6 +42,7 @@ bool isRelativePath(const string &path);
 string computeAbsolutePath(const string libraryPath, const string relativePath);
 string removeLastPathElement(const string path, const bool removePreSeparator = false, 
 			     const bool removePostSeparator = false);
+string appendToDirectory(const string &directoryPath, const string &filename);
 
 unsigned int getFileSize(const string &path);
 string getFileSizeAsString(const string &path);
@@ -51,4 +52,5 @@ bool copyFile(const string &sourcePath, const string &destPath);
 string getLastPathElement(const string &path);
 string getExecutablePath();
 
+bool writeTextFile(const string &path, const string &content);
 #endif