diff --git a/changes/ticket33623 b/changes/ticket33623
new file mode 100644
index 00000000000..528af3ca028
--- /dev/null
+++ b/changes/ticket33623
@@ -0,0 +1,2 @@
+  o Minor feature (sendme, flow control):
+    - Default on sending SENDME version 1 cells. Closes ticket 33623.
diff --git a/src/core/or/sendme.h b/src/core/or/sendme.h
index 20477103fdd..9d757ee4356 100644
--- a/src/core/or/sendme.h
+++ b/src/core/or/sendme.h
@@ -48,7 +48,7 @@ void sendme_record_sending_cell_digest(circuit_t *circ, crypt_path_t *cpath);
 #define SENDME_MAX_SUPPORTED_VERSION 1
 
 /* The cell version constants for when emitting a cell. */
-#define SENDME_EMIT_MIN_VERSION_DEFAULT 0
+#define SENDME_EMIT_MIN_VERSION_DEFAULT 1
 #define SENDME_EMIT_MIN_VERSION_MIN 0
 #define SENDME_EMIT_MIN_VERSION_MAX UINT8_MAX