diff --git a/include/pybind11/cast.h b/include/pybind11/cast.h
index 90407eb..3d4a759 100644
--- a/include/pybind11/cast.h
+++ b/include/pybind11/cast.h
@@ -1172,6 +1172,8 @@
             if (res == 0 || res == 1) {
                 value = (bool) res;
                 return true;
+            } else {
+                PyErr_Clear();
             }
         }
         return false;
diff --git a/tests/test_builtin_casters.py b/tests/test_builtin_casters.py
index 73cc465..abbfcec 100644
--- a/tests/test_builtin_casters.py
+++ b/tests/test_builtin_casters.py
@@ -318,11 +318,15 @@
     import numpy as np
     convert, noconvert = m.bool_passthrough, m.bool_passthrough_noconvert
 
+    def cant_convert(v):
+        pytest.raises(TypeError, convert, v)
+
     # np.bool_ is not considered implicit
     assert convert(np.bool_(True)) is True
     assert convert(np.bool_(False)) is False
     assert noconvert(np.bool_(True)) is True
     assert noconvert(np.bool_(False)) is False
+    cant_convert(np.zeros(2, dtype='int'))
 
 
 def test_int_long():