diff --git a/codeflash/code_utils/instrument_existing_tests.py b/codeflash/code_utils/instrument_existing_tests.py
index db08f8afc..948792b7a 100644
--- a/codeflash/code_utils/instrument_existing_tests.py
+++ b/codeflash/code_utils/instrument_existing_tests.py
@@ -20,22 +20,25 @@
 
 def node_in_call_position(node: ast.AST, call_positions: list[CodePosition]) -> bool:
     if isinstance(node, ast.Call) and hasattr(node, "lineno") and hasattr(node, "col_offset"):
+        node_lineno = node.lineno
+        node_col_offset = node.col_offset
+        node_end_lineno = getattr(node, "end_lineno", None)
+        node_end_col_offset = getattr(node, "end_col_offset", None)
         for pos in call_positions:
-            if (
-                pos.line_no is not None
-                and node.end_lineno is not None
-                and node.lineno <= pos.line_no <= node.end_lineno
-            ):
-                if pos.line_no == node.lineno and node.col_offset <= pos.col_no:
-                    return True
-                if (
-                    pos.line_no == node.end_lineno
-                    and node.end_col_offset is not None
-                    and node.end_col_offset >= pos.col_no
-                ):
-                    return True
-                if node.lineno < pos.line_no < node.end_lineno:
-                    return True
+            pos_line_no = pos.line_no
+            pos_col_no = pos.col_no
+            if pos_line_no is not None and node_end_lineno is not None:
+                if node_lineno <= pos_line_no <= node_end_lineno:
+                    if pos_line_no == node_lineno and node_col_offset <= pos_col_no:
+                        return True
+                    if (
+                        pos_line_no == node_end_lineno
+                        and node_end_col_offset is not None
+                        and node_end_col_offset >= pos_col_no
+                    ):
+                        return True
+                    if node_lineno < pos_line_no < node_end_lineno:
+                        return True
     return False