diff --git a/comfy/samplers.py b/comfy/samplers.py
index f4c3e26..f2ac3c5 100644
--- a/comfy/samplers.py
+++ b/comfy/samplers.py
@@ -295,7 +295,7 @@ def simple_scheduler(model, steps):
 def ddim_scheduler(model, steps):
     s = model.model_sampling
     sigs = []
-    ss = len(s.sigmas) // steps
+    ss = max(len(s.sigmas) // steps, 1)
     x = 1
     while x < len(s.sigmas):
         sigs += [float(s.sigmas[x])]