diff --git a/jedi/api/classes.py b/jedi/api/classes.py
index 68f2efb2..7d506d3f 100644
--- a/jedi/api/classes.py
+++ b/jedi/api/classes.py
@@ -231,8 +231,7 @@ class BaseName(object):
             return None
         return start_pos[1]
 
-    @property
-    def definition_start_position(self):
+    def get_definition_start_position(self):
         """
         The (row, column) of the start of the definition range. Rows start with
         1, columns start with 0.
@@ -244,8 +243,7 @@ class BaseName(object):
             return self._name.start_pos
         return definition.start_pos
 
-    @property
-    def definition_end_position(self):
+    def get_definition_end_position(self):
         """
         The (row, column) of the end of the definition range. Rows start with
         1, columns start with 0.
diff --git a/test/test_api/test_classes.py b/test/test_api/test_classes.py
index 38d7b503..24cf7f36 100644
--- a/test/test_api/test_classes.py
+++ b/test/test_api/test_classes.py
@@ -604,6 +604,7 @@ def test_get_type_hint(Script, code, expected, skip_pre_python36):
 def test_pseudotreenameclass_type(Script):
     assert Script('from typing import Any\n').get_names()[0].type == 'class'
 
+
 def test_definition_start_end_position(Script):
     '''Tests for definition_start_position and definition_end_position'''
     code = '\n'.join([
@@ -624,17 +625,17 @@ def test_definition_start_end_position(Script):
     assert len(names) == 5
     a_func, var1, AClass, hello, func_var = names
 
-    assert a_func.definition_start_position == (1, 0)
-    assert a_func.definition_end_position == (2, 16)
+    assert a_func.get_definition_start_position() == (1, 0)
+    assert a_func.get_definition_end_position() == (2, 16)
 
-    assert var1.definition_start_position == (4, 0)
-    assert var1.definition_end_position == (4, 9)
+    assert var1.get_definition_start_position() == (4, 0)
+    assert var1.get_definition_end_position() == (4, 9)
 
-    assert AClass.definition_start_position == (6, 0)
-    assert AClass.definition_end_position == (11, 23)
+    assert AClass.get_definition_start_position() == (6, 0)
+    assert AClass.get_definition_end_position() == (11, 23)
 
-    assert hello.definition_start_position == (9, 4)
-    assert hello.definition_end_position == (11, 23)
+    assert hello.get_definition_start_position() == (9, 4)
+    assert hello.get_definition_end_position() == (11, 23)
 
-    assert func_var.definition_start_position == (10, 8)
-    assert func_var.definition_end_position == (10, 20)
+    assert func_var.get_definition_start_position() == (10, 8)
+    assert func_var.get_definition_end_position() == (10, 20)