diff --git a/README.md b/README.md
index 9c702cc..b5f5a8d 100644
--- a/README.md
+++ b/README.md
@@ -172,6 +172,35 @@ See the other marker sets for inspiration.
 
 4. Add the marker set with a description to this README file.
 
+## Making exceptions for the validation tool
+
+Sometimes, you might want to add a marker that doesn't pass validation.
+You can do this by setting the `skip_validation` parameter to `True` when creating the marker.
+
+```python
+from lib_marker import Point, Track
+
+MARKERS = [
+    ...,
+    Point(
+        name="My Invalid Marker",
+        x=100,
+        y=200,
+        z=300,
+        skip_validation=True,
+    ),
+    Track(
+        name="My Invalid Track",
+        points=[
+            (0, 64, 0),
+            (10000, 64, 10000),
+        ],
+        skip_validation=True,
+    ),
+    ...,
+]
+```
+
 ## See also
 
 - [BlueMap documentation for markers](https://bluemap.bluecolored.de/wiki/customization/Markers.html)
diff --git a/src/cli/validate.py b/src/cli/validate.py
index 2bb3d6a..3f533ad 100644
--- a/src/cli/validate.py
+++ b/src/cli/validate.py
@@ -8,8 +8,11 @@ from marker_sets import WORLDS
 
 def main() -> None:
     result_is_ok = True
+
+    worlds_to_be_validated = remove_markers_not_to_be_validated(WORLDS)
+
     for test_name, test_f in _tests.items():
-        results = test_f(WORLDS)
+        results = test_f(worlds_to_be_validated)
         if len(results) > 0:
             result_is_ok = False
             print(f"[X] {test_name}")
@@ -87,6 +90,28 @@ class ValidationErrorPoint:
         return f"({self.x}, {self.y}, {self.z})"
 
 
+def remove_markers_not_to_be_validated(
+    worlds: dict[str, list[MarkerSet]],
+) -> dict[str, list[MarkerSet]]:
+    result = {}
+
+    for world_name, marker_sets in worlds.items():
+        result[world_name] = []
+        for marker_set in marker_sets:
+            new_marker_set = MarkerSet(
+                name=marker_set.name,
+                show_by_default=marker_set.show_by_default,
+                markers=[
+                    marker
+                    for marker in marker_set.markers
+                    if not marker.skip_validation
+                ],
+            )
+            result[world_name].append(new_marker_set)
+
+    return result
+
+
 def validate_no_non_included_files(
     worlds: dict[str, list[MarkerSet]],
 ) -> list[ValidationError]:
diff --git a/src/lib_marker/area.py b/src/lib_marker/area.py
index 74fc682..1296040 100644
--- a/src/lib_marker/area.py
+++ b/src/lib_marker/area.py
@@ -1,9 +1,17 @@
-from dataclasses import dataclass
-
 from .marker import Marker
 
 
-@dataclass
 class Area(Marker):
     points: list[tuple[int, int, int]]
     icon: str | None = None
+
+    def __init__(
+        self,
+        name: str,
+        points: list[tuple[int, int, int]],
+        icon: str | None = None,
+        skip_validation: bool = False,
+    ) -> None:
+        super().__init__(name, skip_validation)
+        self.points = points
+        self.icon = icon
diff --git a/src/lib_marker/marker.py b/src/lib_marker/marker.py
index 32902bd..3de670f 100644
--- a/src/lib_marker/marker.py
+++ b/src/lib_marker/marker.py
@@ -1,8 +1,10 @@
 from abc import ABC
-from dataclasses import dataclass
 
-
-@dataclass
 class Marker(ABC):
     name: str
+    skip_validation: bool = False
     # icon: str | None = None
+
+    def __init__(self, name: str, skip_validation: bool = False) -> None:
+        self.name = name
+        self.skip_validation = skip_validation
diff --git a/src/lib_marker/point.py b/src/lib_marker/point.py
index 6289da2..ff695ab 100644
--- a/src/lib_marker/point.py
+++ b/src/lib_marker/point.py
@@ -1,11 +1,23 @@
-from dataclasses import dataclass
-
 from .marker import Marker
 
-
-@dataclass
 class Point(Marker):
     x: int
     y: int
     z: int
     icon: str | None = None
+    skip_validation: bool = False
+
+    def __init__(
+        self,
+        name: str,
+        x: int,
+        y: int,
+        z: int,
+        icon: str | None = None,
+        skip_validation: bool = False,
+    ) -> None:
+        super().__init__(name, skip_validation)
+        self.x = x
+        self.y = y
+        self.z = z
+        self.icon = icon
diff --git a/src/lib_marker/track.py b/src/lib_marker/track.py
index 9fd965d..35ce08a 100644
--- a/src/lib_marker/track.py
+++ b/src/lib_marker/track.py
@@ -1,9 +1,16 @@
-from dataclasses import dataclass
-
 from .marker import Marker
 
-
-@dataclass
 class Track(Marker):
     points: list[tuple[int, int, int]]
     icon: str | None = None
+
+    def __init__(
+        self,
+        name: str,
+        points: list[tuple[int, int, int]],
+        icon: str | None = None,
+        skip_validation: bool = False,
+    ) -> None:
+        super().__init__(name, skip_validation)
+        self.points = points
+        self.icon = icon