diff --git a/include/downloader.h b/include/downloader.h
index bfa1746c..f8651d32 100644
--- a/include/downloader.h
+++ b/include/downloader.h
@@ -204,7 +204,7 @@ class Downloader
   /**
    * Get the ids of the managed downloads.
    */
-  std::vector<std::string> getDownloadIds() const;
+  std::vector<std::string> getDownloadIds();
 
  private:
   mutable std::mutex m_lock;
diff --git a/src/downloader.cpp b/src/downloader.cpp
index f09e644e..22855579 100644
--- a/src/downloader.cpp
+++ b/src/downloader.cpp
@@ -157,7 +157,7 @@ void Downloader::close()
   mp_aria->close();
 }
 
-std::vector<std::string> Downloader::getDownloadIds() const {
+std::vector<std::string> Downloader::getDownloadIds() {
   std::unique_lock<std::mutex> lock(m_lock);
   std::vector<std::string> ret;
   for(auto& p:m_knownDownloads) {