Add a missing include

diff --git a/source/animationplayer.h b/source/animationplayer.h
index db338ffb25b24684975078544bbfa66b2435d6c5..6211fd661c21acd921743644571b1a1d7a45b2d3 100644 (file)
--- a/source/animationplayer.h
+++ b/source/animationplayer.h
@@ -3,6 +3,7 @@
 
 #include <msp/time/timedelta.h>
 #include "animation.h"
+#include "matrix.h"
 
 namespace Msp {
 namespace GL {