diff --git a/bindings/python/wrapper_top.c b/bindings/python/wrapper_top.c
index 53083da4..5136c98a 100644
--- a/bindings/python/wrapper_top.c
+++ b/bindings/python/wrapper_top.c
@@ -24,7 +24,7 @@ typedef int Py_ssize_t;
 
 // Python 3 has removed PyString and related functions, in favor of PyBytes & PyUnicode.
 #if PY_MAJOR_VERSION >= 3
-#define PyString_AsString PyUnicode_AsUnicode
+#define PyString_AsString PyUnicode_AsUTF8
 #define PyString_Check PyUnicode_Check
 #define PyString_FromFormat PyUnicode_FromFormat
 #define PyString_FromString PyUnicode_FromString