diff --git a/core/timermanager.cpp b/core/timermanager.cpp
index 3cc3ec2..a48eb16 100644
--- a/core/timermanager.cpp
+++ b/core/timermanager.cpp
@@ -25,6 +25,8 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #include "timermanager.h"
 
 #include <cinttypes>
+#include <memory>
+#include <mutex>
 
 TimerManager* TimerManager::timer_manager;