diff --git a/cockatrice/src/carditem.h b/cockatrice/src/carditem.h
index 0a9ab08f..c9cbaefc 100644
--- a/cockatrice/src/carditem.h
+++ b/cockatrice/src/carditem.h
@@ -14,6 +14,7 @@ class QColor;
 const int MAX_COUNTERS_ON_CARD = 999;
 const float CARD_WIDTH_HALF = CARD_WIDTH / 2;
 const float CARD_HEIGHT_HALF = CARD_HEIGHT / 2;
+// DELTA is the degrees of rotation that will animate between frames
 const int DELTA = 10;
 
 class CardItem : public AbstractCardItem {