diff --git a/openfisca_core/indexed_enums/enum_array.py b/openfisca_core/indexed_enums/enum_array.py
index 06fc1fbc9..2e9ebf148 100644
--- a/openfisca_core/indexed_enums/enum_array.py
+++ b/openfisca_core/indexed_enums/enum_array.py
@@ -141,8 +141,10 @@ def __eq__(self, other: object) -> bool:
         """
         if other.__class__.__name__ is self.possible_values.__name__:
             return self.view(numpy.ndarray) == other.index
-
-        return self.view(numpy.ndarray) == other
+        is_eq = self.view(numpy.ndarray) == other
+        if isinstance(is_eq, numpy.ndarray):
+            return is_eq
+        return numpy.array([is_eq], dtype=t.BoolDType)
 
     def __ne__(self, other: object) -> bool:
         """Inequality.
diff --git a/openfisca_core/indexed_enums/types.py b/openfisca_core/indexed_enums/types.py
index a16b03750..ffc2cc9f2 100644
--- a/openfisca_core/indexed_enums/types.py
+++ b/openfisca_core/indexed_enums/types.py
@@ -4,6 +4,7 @@
 from openfisca_core.types import (
     Array,
     ArrayLike,
+    DTypeBool as BoolDType,
     DTypeEnum as EnumDType,
     DTypeGeneric as AnyDType,
     DTypeInt as IntDType,
@@ -49,6 +50,7 @@
 __all__ = [
     "Array",
     "ArrayLike",
+    "BoolDType",
     "DTypeLike",
     "Enum",
     "EnumArray",