diff --git a/UI.lua b/UI.lua
index d7fb659..4f7be99 100644
--- a/UI.lua
+++ b/UI.lua
@@ -31,10 +31,10 @@ function CreateItemSplitterDialog(
     editBox:SetNumber(1)
     editBox:SetJustifyH("RIGHT")
     editBox:SetTextInsets(0, 5, 0, 0)
-    editBox:SetScript("OnTextChanged", function(self)
-        local currentNumber = editBox:GetNumber()
-        editBox:SetNumber(ns.math_min(currentNumber, maximumValue))
-    end)
+    editBox:SetScript("OnTextChanged", function(self)
+        local currentNumber = editBox:GetNumber()
+        editBox:SetNumber(ns.math_min(ns.math_max(currentNumber, 1), maximumValue))
+    end)
 
     -- Support for Enter and Alt+Enter key press
     editBox:SetScript("OnKeyDown", function(self, key)