diff --git a/source/games/blood/src/actor.cpp b/source/games/blood/src/actor.cpp
index 012ebda75..8ca6dcc85 100644
--- a/source/games/blood/src/actor.cpp
+++ b/source/games/blood/src/actor.cpp
@@ -2573,7 +2573,7 @@ static void ConcussSprite(DBloodActor* source, DBloodActor* actor, const DVector
 
 		if (mass > 0)
 		{
-			double size = FixedToFloat<29>(tileWidth(actor->spr.picnum) * actor->spr.xrepeat * tileHeight(actor->spr.picnum) * actor->spr.yrepeat);
+			double size = (tileWidth(actor->spr.picnum) * actor->spr.xrepeat * REPEAT_SCALE * tileHeight(actor->spr.picnum) * actor->spr.yrepeat * REPEAT_SCALE) / 0x20000;
 			actor->vel += vect * Scale(damage, size, mass);
 		}
 	}