missing DECREF in WriteUnraisable

diff --git a/Cython/Compiler/Nodes.py b/Cython/Compiler/Nodes.py
index def2e02520b9aba45ff3b9e0f6226400c5987f34..890c658b32a15cf65e43a94f5dfa875ce1f6c2a9 100644 (file)
--- a/Cython/Compiler/Nodes.py
+++ b/Cython/Compiler/Nodes.py
@@ -4579,9 +4579,12 @@ static void __Pyx_WriteUnraisable(const char *name) {
     ctx = PyUnicode_FromString(name);
     #endif
     __Pyx_ErrRestore(old_exc, old_val, old_tb);
-    if (!ctx)
-        ctx = Py_None;
-    PyErr_WriteUnraisable(ctx);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
 }
 """]