diff --git a/tiledb/libtiledb.pyx b/tiledb/libtiledb.pyx
index 2d33581b8f..9037447431 100644
--- a/tiledb/libtiledb.pyx
+++ b/tiledb/libtiledb.pyx
@@ -680,7 +680,7 @@ def _tiledb_cast_tile_extent(tile_extent, dtype):
 cdef int _numpy_typeid(tiledb_datatype_t tiledb_dtype):
     """Return a numpy type num (int) given a tiledb_datatype_t enum value."""
     np_id_type = _tiledb_dtype_to_numpy_typeid_convert.get(tiledb_dtype, None)
-    if np_id_type:
+    if np_id_type is not None:
         return np_id_type
     return np.NPY_DATETIME if _tiledb_type_is_datetime(tiledb_dtype) else np.NPY_NOTYPE
 
diff --git a/tiledb/query_condition.py b/tiledb/query_condition.py
index e01bc71723..8163830f93 100644
--- a/tiledb/query_condition.py
+++ b/tiledb/query_condition.py
@@ -365,19 +365,27 @@ def cast_value_to_dtype(
                 # casted to numeric types
                 if isinstance(value, str):
                     raise TileDBError(f"Cannot cast `{value}` to {dtype}.")
+
                 if np.issubdtype(dtype, np.datetime64):
                     cast = getattr(np, "int64")
+                elif np.issubdtype(dtype, bool):
+                    cast = getattr(np, "uint8")
                 else:
                     cast = getattr(np, dtype)
+
                 value = cast(value)
+
             except ValueError:
                 raise TileDBError(f"Cannot cast `{value}` to {dtype}.")
 
         return value
 
     def init_pyqc(self, pyqc: PyQueryCondition, dtype: str) -> Callable:
-        if dtype != "string" and np.issubdtype(dtype, np.datetime64):
-            dtype = "int64"
+        if dtype != "string":
+            if np.issubdtype(dtype, np.datetime64):
+                dtype = "int64"
+            elif np.issubdtype(dtype, bool):
+                dtype = "uint8"
 
         init_fn_name = f"init_{dtype}"
 
diff --git a/tiledb/tests/test_query_condition.py b/tiledb/tests/test_query_condition.py
index 550da8691f..e94d6fba66 100644
--- a/tiledb/tests/test_query_condition.py
+++ b/tiledb/tests/test_query_condition.py
@@ -723,6 +723,40 @@ def test_do_not_return_attrs(self):
             assert "D" in A.query(cond=cond, attrs=None).multi_index[:]
             assert "D" not in A.query(cond=cond, attrs=[]).multi_index[:]
 
+    def test_boolean(self):
+        path = self.path("test_boolean")
+
+        dom = tiledb.Domain(tiledb.Dim(domain=(1, 10), tile=1, dtype=np.uint32))
+        attrs = [
+            tiledb.Attr(name="a", dtype=np.bool_),
+            tiledb.Attr(name="b", dtype=np.bool_),
+            tiledb.Attr(name="c", dtype=np.bool_),
+        ]
+        schema = tiledb.ArraySchema(domain=dom, attrs=attrs, sparse=True)
+        tiledb.Array.create(path, schema)
+
+        with tiledb.open(path, "w") as arr:
+            arr[np.arange(1, 11)] = {
+                "a": np.random.randint(0, high=2, size=10),
+                "b": np.random.randint(0, high=2, size=10),
+                "c": np.random.randint(0, high=2, size=10),
+            }
+
+        with tiledb.open(path) as A:
+            result = A.query(cond="a == True")[:]
+            assert all(result["a"])
+
+            result = A.query(cond="a == False")[:]
+            assert all(~result["a"])
+
+            result = A.query(cond="a == True and b == True")[:]
+            assert all(result["a"])
+            assert all(result["b"])
+
+            result = A.query(cond="a == False and c == True")[:]
+            assert all(~result["a"])
+            assert all(result["c"])
+
 
 class QueryDeleteTest(DiskTestCase):
     def test_basic_sparse(self):