diff --git a/api/core/workflow/nodes/loop/loop_node.py b/api/core/workflow/nodes/loop/loop_node.py
index 5561150dc..64296dc04 100644
--- a/api/core/workflow/nodes/loop/loop_node.py
+++ b/api/core/workflow/nodes/loop/loop_node.py
@@ -524,7 +524,10 @@ class LoopNode(BaseNode):
     @staticmethod
     def _get_segment_for_constant(var_type: SegmentType, original_value: Any) -> Segment:
         """Get the appropriate segment type for a constant value."""
-        if not var_type.is_array_type() or var_type == SegmentType.BOOLEAN:
+        # TODO: Refactor for maintainability:
+        # 1. Ensure type handling logic stays synchronized with _VALID_VAR_TYPE (entities.py)
+        # 2. Consider moving this method to LoopVariableData class for better encapsulation
+        if not var_type.is_array_type() or var_type == SegmentType.ARRAY_BOOLEAN:
             value = original_value
         elif var_type in [
             SegmentType.ARRAY_NUMBER,