diff --git a/modules/sd_hijack_optimizations.py b/modules/sd_hijack_optimizations.py
index 80e48a422..6464ca8ef 100644
--- a/modules/sd_hijack_optimizations.py
+++ b/modules/sd_hijack_optimizations.py
@@ -605,7 +605,7 @@ def sdp_attnblock_forward(self, x):
     q, k, v = (rearrange(t, 'b c h w -> b (h w) c') for t in (q, k, v))
     dtype = q.dtype
     if shared.opts.upcast_attn:
-        q, k = q.float(), k.float()
+        q, k, v = q.float(), k.float(), v.float()
     q = q.contiguous()
     k = k.contiguous()
     v = v.contiguous()