diff --git a/ldm/invoke/generator/txt2img2img.py b/ldm/invoke/generator/txt2img2img.py
index 7762d2a51d..759ba2dba4 100644
--- a/ldm/invoke/generator/txt2img2img.py
+++ b/ldm/invoke/generator/txt2img2img.py
@@ -25,16 +25,15 @@ class Txt2Img2Img(Generator):
         kwargs are 'width' and 'height'
         """
         uc, c, extra_conditioning_info = conditioning
+        scale_dim = min(width, height)
+        scale = 512 / scale_dim
+
+        init_width = math.ceil(scale * width / 64) * 64
+        init_height = math.ceil(scale * height / 64) * 64
 
         @torch.no_grad()
         def make_image(x_T):
 
-            scale_dim = min(width, height)
-            scale = 512 / scale_dim
-            
-            init_width = math.ceil(scale * width / 64) * 64
-            init_height = math.ceil(scale * height / 64) * 64
-
             shape = [
                 self.latent_channels,
                 init_height // self.downsampling_factor,