diff --git a/src/buffer.c b/src/buffer.c
index 1a3497e..e7fecd7 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -607,6 +607,9 @@
 #ifdef FEAT_PYTHON
     python_buffer_free(buf);
 #endif
+#ifdef FEAT_PYTHON3
+    python3_buffer_free(buf);
+#endif
 #ifdef FEAT_RUBY
     ruby_buffer_free(buf);
 #endif