diff --git a/aikido_zen/middleware/set_rate_limit_group.py b/aikido_zen/middleware/set_rate_limit_group.py
index 09f8f9c76..7fa30ac76 100644
--- a/aikido_zen/middleware/set_rate_limit_group.py
+++ b/aikido_zen/middleware/set_rate_limit_group.py
@@ -5,12 +5,12 @@
 
 
 def set_rate_limit_group(group_id: Union[str, int]):
-    if not group_id:
+    if group_id is None or group_id == "":
         logger.warning("Group ID cannot be empty.")
         return
 
     # Check if it's string of number, ensure string.
-    if not isinstance(group_id, str) and not isinstance(group_id, int):
+    if isinstance(group_id, bool) or not isinstance(group_id, (str, int)):
         logger.warning("Group ID must be a string or a number")
         return
     group_id = str(group_id)
diff --git a/aikido_zen/middleware/set_rate_limit_group_test.py b/aikido_zen/middleware/set_rate_limit_group_test.py
index 019185871..2de57d246 100644
--- a/aikido_zen/middleware/set_rate_limit_group_test.py
+++ b/aikido_zen/middleware/set_rate_limit_group_test.py
@@ -39,6 +39,7 @@ def test_set_rate_limit_group_none_group_id(caplog):
     set_rate_limit_group(None)
     assert context1.rate_limit_group is None
     assert "Group ID cannot be empty." in caplog.text
+    assert "must be a string or a number" not in caplog.text
 
 
 def test_set_rate_limit_group_no_context(caplog):
@@ -64,6 +65,38 @@ def test_set_rate_limit_group_non_string_group_id(caplog):
     assert context1.rate_limit_group == "123"
 
 
+def test_set_rate_limit_group_zero_int_group_id(caplog):
+    context1 = test_utils.generate_and_set_context()
+    assert context1.rate_limit_group is None
+    set_rate_limit_group(0)
+    assert context1.rate_limit_group == "0"
+    assert "Group ID cannot be empty." not in caplog.text
+
+
+def test_set_rate_limit_group_zero_string_group_id(caplog):
+    context1 = test_utils.generate_and_set_context()
+    assert context1.rate_limit_group is None
+    set_rate_limit_group("0")
+    assert context1.rate_limit_group == "0"
+    assert "Group ID cannot be empty." not in caplog.text
+
+
+def test_set_rate_limit_group_false_group_id(caplog):
+    context1 = test_utils.generate_and_set_context()
+    assert context1.rate_limit_group is None
+    set_rate_limit_group(False)
+    assert context1.rate_limit_group is None
+    assert "Group ID must be a string or a number" in caplog.text
+
+
+def test_set_rate_limit_group_true_group_id(caplog):
+    context1 = test_utils.generate_and_set_context()
+    assert context1.rate_limit_group is None
+    set_rate_limit_group(True)
+    assert context1.rate_limit_group is None
+    assert "Group ID must be a string or a number" in caplog.text
+
+
 def test_set_rate_limit_group_non_string_group_id_non_number(caplog):
     context1 = test_utils.generate_and_set_context()
     assert context1.rate_limit_group is None