diff --git a/pylot/core/pick/picker.py b/pylot/core/pick/picker.py
index 1f1c3a37..1715746c 100644
--- a/pylot/core/pick/picker.py
+++ b/pylot/core/pick/picker.py
@@ -254,7 +254,7 @@ class AICPicker(AutoPicker):
                 return
             imax = np.argmax(dataslope)
             iislope = islope[0][0:imax+1]
-            if len(iislope) <= 2:
+            if len(iislope) < 2:
                 # calculate slope from initial onset to maximum of AIC function
                 print("AICPicker: Not enough data samples left for slope calculation!")
                 print("Calculating slope from initial onset to maximum of AIC function ...")