diff --git a/include/downloader.h b/include/downloader.h
index 35d44f62c..b60e48136 100644
--- a/include/downloader.h
+++ b/include/downloader.h
@@ -97,7 +97,6 @@ class Downloader
 
   size_t getNbDownload() { return m_knownDownloads.size(); }
   std::vector<std::string> getDownloadIds();
-  const std::string &getAria2LaunchCmd();
 
  private:
   std::map<std::string, std::unique_ptr<Download>> m_knownDownloads;
diff --git a/src/aria2.cpp b/src/aria2.cpp
index 07dfbdb03..9c6da41a9 100644
--- a/src/aria2.cpp
+++ b/src/aria2.cpp
@@ -78,8 +78,9 @@ Aria2::Aria2():
   callCmd.push_back("--max-concurrent-downloads=42");
   callCmd.push_back("--rpc-max-request-size=6M");
   callCmd.push_back("--file-allocation=none");
+  std::string launchCmd;
   for (auto &cmd : callCmd) {
-      m_launchCmd.append(cmd).append(" ");
+      launchCmd.append(cmd).append(" ");
   }
   mp_aria = Subprocess::run(callCmd);
   mp_curl = curl_easy_init();
@@ -108,7 +109,7 @@ Aria2::Aria2():
   }
   if (!watchdog) {
     curl_easy_cleanup(mp_curl);
-    throw std::runtime_error("Cannot connect to aria2c rpc");
+    throw std::runtime_error("Cannot connect to aria2c rpc. Aria2c launch cmd : " + launchCmd);
   }
 }
 
diff --git a/src/aria2.h b/src/aria2.h
index 6d7262479..898904a5d 100644
--- a/src/aria2.h
+++ b/src/aria2.h
@@ -26,7 +26,6 @@ class Aria2
     std::string m_downloadDir;
     CURL* mp_curl;
     pthread_mutex_t m_lock;
-    std::string m_launchCmd;
 
     std::string doRequest(const MethodCall& methodCall);
 
@@ -44,7 +43,6 @@ class Aria2
     void pause(const std::string& gid);
     void unpause(const std::string& gid);
     void remove(const std::string& gid);
-    const std::string &getLaunchCmd() { return m_launchCmd; };
 };
 
 }; //end namespace kiwix
diff --git a/src/downloader.cpp b/src/downloader.cpp
index 504e3fdd4..393810d2a 100644
--- a/src/downloader.cpp
+++ b/src/downloader.cpp
@@ -163,11 +163,6 @@ std::vector<std::string> Downloader::getDownloadIds() {
   return ret;
 }
 
-const std::string &Downloader::getAria2LaunchCmd()
-{
-  return mp_aria->getLaunchCmd();
-}
-
 Download* Downloader::startDownload(const std::string& uri)
 {
   for (auto& p: m_knownDownloads) {