diff --git a/src/if_py_both.h b/src/if_py_both.h
index 8f60550..4f977c3 100644
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -1199,6 +1199,14 @@
 
     if (!module)
     {
+	if (PyErr_Occurred())
+	{
+	    if (PyErr_ExceptionMatches(PyExc_ImportError))
+		PyErr_Clear();
+	    else
+		return NULL;
+	}
+
 	Py_INCREF(Py_None);
 	return Py_None;
     }