diff --git a/Python/structmember.c b/Python/structmember.c
index 17422d0..4da0c78 100644
--- a/Python/structmember.c
+++ b/Python/structmember.c
@@ -85,6 +85,9 @@
 	case T_ULONG:
 		v = PyLong_FromUnsignedLong(*(unsigned long*)addr);
 		break;
+	case T_PYSSIZET:
+		v = PyInt_FromSsize_t(*(Py_ssize_t*)addr);
+		break;
 	case T_FLOAT:
 		v = PyFloat_FromDouble((double)*(float*)addr);
 		break;
@@ -263,6 +266,13 @@
 		}
 		break;
 		}
+	case T_PYSSIZET:{
+		*(Py_ssize_t*)addr = PyInt_AsSsize_t(v);
+		if ((*(Py_ssize_t*)addr == (Py_ssize_t)-1)
+		    && PyErr_Occurred())
+				return -1;
+		break;
+		}
 	case T_FLOAT:{
 		double double_val;
 		double_val = PyFloat_AsDouble(v);