diff --git a/src/OverteClient.hpp b/src/OverteClient.hpp
index a66cb3f..4f31b6b 100644
--- a/src/OverteClient.hpp
+++ b/src/OverteClient.hpp
@@ -8,6 +8,7 @@
 #include <memory>
 
 #include <glm/glm.hpp>
+#include <glm/gtc/quaternion.hpp>
 
 // Networking types needed for member declarations (sockaddr_storage, socklen_t)
 #include <sys/socket.h>