diff --git a/map2loop/data_checks.py b/map2loop/data_checks.py
index 68ca13b3..73aee9e9 100644
--- a/map2loop/data_checks.py
+++ b/map2loop/data_checks.py
@@ -669,7 +669,7 @@ def check_keys(d: dict, parent_key=""):
         logger.error("minimum_fault_length must be a number.")
         raise ValueError(f"minimum_fault_length must be a number, instead got: {type(mfl)}")
     
-
+@beartype.beartype
 def validate_geometry(
     geodata: geopandas.GeoDataFrame,
     expected_geom_types: List[type],
@@ -690,7 +690,7 @@ def validate_geometry(
     # 1. Check if all geometries are valid
     if not geodata.geometry.is_valid.all():
         logger.error(f"Invalid geometries found in datatype {datatype_name}. Please fix them before proceeding.")
-        return True, f"Invalid geometries found in datatype {datatype_name}."
+        return True, f"Invalid geometries found in datatype {datatype_name}"
     
     # 2. Check if all geometries are of the expected types
     if not geodata.geometry.apply(lambda geom: isinstance(geom, tuple(expected_geom_types))).all():
@@ -707,5 +707,5 @@ def validate_geometry(
         )
     
     # If all checks pass
-    logger.debug(f"Geometry validation passed for datatype {datatype_name}.")
+    logger.debug(f"Geometry validation passed for datatype {datatype_name}")
     return False, ""
\ No newline at end of file
diff --git a/tests/data_checks/test_input_data_faults.py b/tests/data_checks/test_input_data_faults.py
index cf668889..2f70176a 100644
--- a/tests/data_checks/test_input_data_faults.py
+++ b/tests/data_checks/test_input_data_faults.py
@@ -34,7 +34,7 @@
             },
             {"structtype_column": "FEATURE", "fault_text": "Fault", "objectid_column": "ID"},
             True,
-            "Invalid geometries found in FAULT data."
+            "Invalid geometries found in datatype FAULT"
         ),
 
         # Non-string FEATURE column
diff --git a/tests/data_checks/test_input_data_fold.py b/tests/data_checks/test_input_data_fold.py
index cb92ad2e..75051e56 100644
--- a/tests/data_checks/test_input_data_fold.py
+++ b/tests/data_checks/test_input_data_fold.py
@@ -27,7 +27,7 @@
         (
             {
                 "geometry": [
-                    shapely.geometry.Point(0, 0),  # Invalid type
+                    shapely.geometry.LineString([(0,0), (0,0)]),  # Invalid type
                     shapely.geometry.LineString([(0, 0), (1, 1)])
                 ],
                 "FEATURE": ["fold A", "fold B"],
@@ -36,7 +36,7 @@
             },
             {"structtype_column": "FEATURE", "fold_text": "fold", "objectid_column": "ID", "description_column": "description"},
             True,
-            "Invalid geometry types found in FOLD data."
+            "Invalid geometries found in datatype FOLD"
         ),
         # Non-string FEATURE column
         (