diff --git a/src/textual/widgets/_input.py b/src/textual/widgets/_input.py
index 326e535958..8ad9e1b5c9 100644
--- a/src/textual/widgets/_input.py
+++ b/src/textual/widgets/_input.py
@@ -149,7 +149,7 @@ class Input(ScrollView):
     | ctrl+k | Delete everything to the right of the cursor. |
     | ctrl+x | Cut selected text. |
     | ctrl+c | Copy selected text. |
-    | ctrl+v | Paste text from the clipboard. | 
+    | ctrl+v | Paste text from the clipboard. |
     """
 
     COMPONENT_CLASSES: ClassVar[set[str]] = {
@@ -187,9 +187,9 @@ class Input(ScrollView):
         }
 
         &:focus {
-            border: tall $border;            
+            border: tall $border;
             background-tint: $foreground 5%;
-            
+
         }
         &>.input--cursor {
             background: $input-cursor-background;
@@ -207,12 +207,12 @@ class Input(ScrollView):
         }
         &.-invalid:focus {
             border: tall $error;
-        }    
+        }
 
         &:ansi {
             background: ansi_default;
             color: ansi_default;
-            &>.input--cursor {     
+            &>.input--cursor {
                 text-style: reverse;
             }
             &>.input--placeholder, &>.input--suggestion {
@@ -224,8 +224,8 @@ class Input(ScrollView):
             }
             &.-invalid:focus {
                 border: tall ansi_red;
-            }  
-            
+            }
+
         }
     }
 
@@ -417,8 +417,7 @@ def __init__(
             ```
         """
         self._reactive_valid_empty = valid_empty
-        self._valid = True
-
+        self._valid = not (input and not valid_empty)
         self.restrict = restrict
         if type not in _RESTRICT_TYPES:
             raise ValueError(
diff --git a/tests/input/test_input_validation.py b/tests/input/test_input_validation.py
index 3ea17191b5..d9878b1533 100644
--- a/tests/input/test_input_validation.py
+++ b/tests/input/test_input_validation.py
@@ -207,7 +207,6 @@ async def test_none_validate_on_means_all_validations_happen():
         await pilot.pause()
         assert input.has_class("-valid")
 
-
 async def test_valid_empty():
     app = InputApp(None)
     async with app.run_test() as pilot:
@@ -222,3 +221,22 @@ async def test_valid_empty():
 
         assert input.has_class("-valid")
         assert not input.has_class("-invalid")
+
+
+class InvalidEmptyApp(App):
+
+    def compose(self) -> ComposeResult:
+        yield Input(valid_empty=False, value="x")
+
+async def test_invalid_empty():
+    app = InvalidEmptyApp()
+    with app.run_test() as pilot:
+        input = app.query_one(Input)
+
+        assert input.has_class('-valid')
+        assert not input.has_class('-invalid')
+
+        await pilot.press('backspace')
+        assert input.has_class('-invalid')
+        assert not input.has_class('-valid')
+