diff --git a/src/spritesheet.c b/src/spritesheet.c
index 454dcc9..777492a 100644
--- a/src/spritesheet.c
+++ b/src/spritesheet.c
@@ -44,8 +44,7 @@ Spritesheet* spritesheet_from_texture(SDL_Texture* texture, IVector tile_size) {
 
     self->tile_size = tile_size;
     self->tile_shear = self->resolution.x / self->tile_size.x;
-    self->tile_count = self->resolution.x / self->tile_size.x + self->resolution.y / self->tile_size.y;
-
+    self->tile_count = self->resolution.x / self->tile_size.x * self->resolution.y / self->tile_size.y;
     return self;
 }